124 Nouns That Start with X [with Definitions and Examples]

Nouns that start with X mostly comprise scientific and chemical terms which may or may not be a part of our routine. So, this is will turn out to be a list of unique nouns beginning with X and the applications of these words might not be as plentiful as other letters but we trust that you will be able to find a few new words that can be a part of your writing style.

As a writer, most of the time you run into new staggering words unexpectedly as everyone has their way of perceiving and interpreting different information. So, there is a good chance that you’ll discover a few operational nouns starting with X. Honestly there might not be a bunch of nouns that start with X to describe a person, refer to a state of action and describe characteristics of someone but for science students this list of nouns that start with X which carries many technical terms, scientific names of elements to enlighten the science students with the fundamentals. So, let’s read on to learn some new nouns that start with X.

Table of Contents

Nouns That Start with X You Always Use

You’ll come across a lot of familiar nouns that start with X in this section. After carefully reading through this list, you’ll be able to use these nouns flawlessly.

1. Xalam

Definition: a traditional stringed musical instrument from West Africa with 1-5 strings
Synonyms: bappe, diassare, hoddu, koliko
Example: The xalam is commonly played in Mali.

2. Xanthamide

Definition: an amido derivative of xanthic acid obtained as a white crystalline substance
Synonyms: xanthogen amide, C2H5O.CS.NH2
Example: Xanthamide is used in some chemical experiments.

3. Xanthan

Definition: a water-soluble natural gum produced by the fermentation of sugar with certain microorganisms
Synonyms: binder, extender
Example: Xanthan (E415) may be derived from maize.

4. Xanthate

Definition: a salt or ester of xanthic acid
Synonyms: viscose, salt
Example: Xanthates are a group of chemicals typically used in sulphide flotation in mining applications.

5. Xanthelasma

Definition: xanthelasma is yellowish plaques that occur most commonly near the inner canthus of the eyelid, more often on the upper lid than the lower lid
Synonyms: fatty deposits in skin around the eyes, fatty deposits on eyelids
Example: Xanthelasma is best treated by treating the blood fat problem through diet, exercise and medications.

6. Xanthide

Definition: a feebly basic compound C₅H₄N₄O₂ that occurs especially in animal or plant tissue, is derived from guanine and hypoxanthine.
Synonyms: C₅H₄N₄O₂
Example: Xanthide yields uric acid on oxidation.

7. Xylopolist

Definition: a person who sells wood products
Synonyms: timber merchant

Example: You don’t need a degree to be a xylophonist.

8. Xanthium

Definition: an herbaceous plant of the daisy family with broad leaves and burred fruits, native to tropical America
Synonyms: cocklebur, Asterales
Example: In a word, the prospect of extracts of Xanthium sibiricum in future production and practice is brilliant.

9. Xanthophyll

Definition: a yellow coloring matter derived from the retina
Synonyms: lutein, C₄₀H₅₆O₂
Example: Xanthophyll from the marigold flower is a potent antioxidant.

10. X-axis

Definition: the principal or horizontal axis of a system of coordinates, points along which have a value of zero for all other coordinates
Synonyms: horizontal axis, the abscissa
Example: The value for the x-axis is always given first.

Nouns That Start with X You Usually Use

In this segment, we’ll cover nouns starting with X that we usually employ while writing or speaking. Let’s read on to get a better understanding of these words.

1. Xebec

Definition: a small three-masted Mediterranean sailing ship with lateen and square sails
Synonyms: brigantine, bugeye
Example: The escorts consisted of a xebec of 20 guns and three gunboats.

2. Xenelasia

Definition: a customer prohibiting stranger from residing at Sparta and empowering magistrates to expel them

Synonyms: barbarity, prohibited
Example: Dominant Sparta deploys the term Xenelasia as synonymous with barbarity, an entirely uncivilized condition.

3. Xenium

Definition: a present given among the ancient Greeks and Romans to a guest or stranger and especially to a foreign ambassador
Synonyms: endowment, gift
Example: Thor had no idea what sort of xenium he should provide since he wasn’t in the habit of being hospitable to houseguests.

4. Xenobiotic

Definition: a xenobiotic substance
Synonyms: xenos, foreigner
Example: The body removes xenobiotics by xenobiotic metabolism.

5. Xenocrysts

Definition: a crystal in an igneous rock which is not derived from the original magma
Synonyms: geology, rock, stone
Example: A magma may pick up crystals that crystallized from another magma; these crystals are called xenocrysts.

6. Xenogamy

Definition: fertilization of a flower by pollen from a flower on a genetically different plant
Synonyms: genteelness, gentility
Example: Both species of this flower use a mixed breeding system, consisting of xenogamy.

7. Xenogenesis

Definition: the supposed generation of offspring completely and permanently different from the parent

Synonyms: alternation of generations, heterogenesis
Example: The Australian babies had all died within a few weeks, suggesting that something may have gone wrong with the xenogenesis process.

8. Xenograft

Definition: the transplant of an organ, tissue, or cells to an individual of another species
Synonyms: allograft, autograft, heterograft
Example: Xenograft studies provide models of skin responses in vivo.

9. Xenolith

Definition: a piece of rock within an igneous mass which is not derived from the original magma but has been introduced from elsewhere, especially the surrounding country rock
Synonyms: rock stone
Example: To the east of the laguna the lavas contain angular xenoliths of more basic lava, while to the west they appear massive and lack xenoliths.

10. Xylopyrography

Definition: the technique of making a picture or design on wood using a hot iron or another heated instrument.
Synonym: wood printing
Example: He is an expert in xylopyrography.

Nouns That Start with X You Often Use

It is essential to have a good perception of nouns that we often use in our conversations. Below are few such nouns starting with X.

1. Xenon

Definition: the chemical element of atomic number 54, a member of the noble gas series
Synonyms: inert gas, Xe
Example: Polarised atoms of xenon are useful because they can provide the reference direction for very accurate gyroscopes.

2. Xenophilia

Definition: an attraction to foreign peoples, cultures, or customs
Synonyms: none
Example: I do have a bit of xenophilia with respect to food though.

3. Xenopterygii

Definition: a suborder of fishes including Gobiesox and allied genera
Synonyms: fish, tuna, croaker
Example: Xenopterygii is an order of bony fishes that is coextensive with the family Gobiesocidae.

4. Xenotime

Definition: a yellowish-brown mineral which occurs in some igneous rocks and consists of a phosphate of yttrium and other rare earth elements
Synonyms: rock mineral, zircon

Example: Xenotime and white mica were extracted from the sample.

5. Xenyl

Definition: a univalent radical derived from biphenyl
Synonyms: C₆H₅C₆H₄
Example: An example of xylene is STYROLENE.

6. Xeraphim

Definition: an old monetary unit of Bombay, equal to three-fifths of a rupee
Synonyms: money, currency
Example: Xerahim was a silver coin worth 300 to 360 reis.

7. Xeres

Definition: a town in SW Spain: famous for the making of sherry
Synonyms: town, name of a place
Example: My uncle is from Xeres.

8. Xeroderma

Definition: any of various diseases characterized by extreme dryness of the skin, especially a mild form of ichthyosis
Synonyms: Ichthyosis vulgaris MIM146700, a nonspecific term for any form of dry skin
Example: Xeroderma is caused mainly by sunlight exposure.

9. Xerophagy

Definition: the strictest Christian fast which is observed chiefly in the Eastern churches during lent or especially Holy Week
Synonyms: dry meal, fast

Example: Throughout this week, and until the Sixth Friday in Lent, one meal may be taken a day with xerophagy.

10. Xerophthalmia

Definition: abnormal dryness of the conjunctiva and cornea of the eye, with inflammation and ridge formation, typically associated with vitamin A deficiency
Synonyms: ophthalmology, blindness due to corneal opacity
Example: People deficient in retinoids suffer night blindness and xerophthalmia.

Nouns That Start with X You Sometimes Use

Our daily routine makes us use some nouns more frequently than others. So let’s see a handful of these nouns beginning with X.

1. Xerophyte

Definition: a plant that needs very little water
Synonyms: xerophile, hydrophyte, mesophyte, desert plant
Example: The stems of some xerophytes are dry and hard in structure, whilst others are succulent and fleshy.

2. Xerostomia

Definition: a condition in which the salivary glands in your mouth don’t make enough saliva to keep your mouth wet
Synonyms: dry mouth, reduced salivary flow
Example: Our objective is to study the influence on xerostomia of radiotherapy in the treatment of head and neck cancer.

3. Xiphias

Definition: a genus of large scombroid fishes comprising the common swordfish
Synonyms: xiphiidae, amphibian
Example: I can admire it as I would admire a mountain, or the Smug, or Xiphias, or some distant stars.

4. Xiphidium

Definition: a genus of herbs in the family Haemodoraceae first described as a genus in 1775

Synonyms: herb, haemodoraceae
Example: Xiphidium is used in the treatment of some diseases.

5. Xiphosura

Definition: Xiphosura is an order of arthropods related to arachnids
Synonyms: horseshoe

Example: The Xiphosura are marine in habit, frequenting the shore.

6. X-Mas

Definition: another term for Christmas
Synonyms: Christmas, Christmastime
Example: A week intervenes between X-mas and New Year’s Day.

7. Xylographer

Definition: an engraver on wood, especially one of the earliest wood-engravers, as of the fifteenth century.
Synonyms: (none)

Example: Pam is a famous xylographer.

8. X-ray

Definition: an electromagnetic wave of high energy and very short wavelength, which is able to pass through many materials opaque to light

Synonyms: radiogram, radiograph
Example: The X-ray showed a slight irregularity in one lung.

9. X-wing

Definition: The X-wing is a versatile Rebel Alliance starfighter that balances speed with firepower
Synonyms: starfighter, A-10, swordfish
Example: In Star Wars Battlefront you can try out many of the neat vehicles used in the movies; land speeders, X-Wing fighters, and quite a few others.

10. Xu

Definition: a monetary unit of Vietnam
Synonyms: currency
Example: One Xu equals one-hundredth of a dong.

Nouns That Start with X You Occasionally Use

Inside this part of the article, we’ll dig into noun words that start with X which are occasionally a part of our chats. This section will also bring some unique words into the light.

1. Xylem

Definition: the vascular tissue in plants which conducts water and dissolved nutrients upwards from the root and also helps to form the woody element in the stem
Synonyms: metaxylem, protoxylem
Example: Xylem carried water from the root of the plant to the very center of the leaf.

2. Xylene

Definition: a volatile liquid hydrocarbon obtained by distilling wood, coal tar, or petroleum, used in fuels and solvents and in chemical synthesis
Synonyms: C₈H₁₀
Example: Any dried oil can be removed using xylene.

3. Xylenol

Definition: organic compounds
Synonyms: (CH₃)₂C₆H₃OH
Example: The adsorption capacity of 3,5-xylenol was found to increase with the decrease in particle size of the adsorbent.

4. Xylite

Definition: A liquid hydrocarbon found in crude wood spirits
Synonyms: C₅H₁₂O₅
Example: Xylite boils at 61.5°C.

5. Xylocopa

Definition: a genus of carpenter bees that is the type of the family Xylocopidae
Synonyms: carpenter bees
Example: Xylocopa has circulatory anatomy like honeybees and bumblebees.

6. Xylograph

Definition: a print from an engraving in wood
Synonyms: woodcut
Example: This temple is renowned for its collection of religious treasures, masks, musical instruments, armor, ancient weapons, and xylograph blocks used for printing prayer flags and texts.

7. Xyloid

Definition: having the qualities or nature of wood
Synonyms: resembling wood, woody, ligneous
Example: Xyloid may sometimes have the tenacity and the appearance of ordinary wood but it can be seen that the combustible woody tissue has experienced a great modification.

8. Xylophone

Definition: a musical instrument played by striking a row of wooden bars of graduated length with one or more small wooden or plastic beaters
Synonyms: marimba, carillon, vibraphone, glockenspiel, musical-instrument
Example: Emma was experimenting with atonal motifs on a xylophone and Vicky had been given a doll but had pulled the arm off.

9. Xylopyrography

Definition: the technique of making a picture or design on wood using a hot iron or another heated instrument
Synonyms: poker painting
Example: Joe is an expert in xylopyrography.

10. Xyloquinone

Definition: any of several yellow crystalline compounds obtained in general by oxidation of xylidines or xylenols; dimethyl-benzoquinone
Synonyms: (CH₃)₂C₆H₂O₂
Example: Any of a group of quinone compounds obtained by the oxidation of xylidines are know as xyloquinone.

Nouns That Start with X You Seldom Use

This segment will put forward a chunk of words that are not usually a part of casual writing and chit-chat. So, get ready to learn some brand-new and quirky nouns that start with the letter X.

1. Xylorcin

Definition: a derivative of xylene obtained as a white crystalline substance which on exposure in the air becomes red
Synonyms: betaorcin
Example: Xylorcin is often used in chemical laboratories.

2. Xylose

Definition: sugar of the pentose class which occurs widely in plants, especially as a component of hemicelluloses
Synonyms: wood sugar
Example: Xylose is used as a diabetic sweetener in food and beverage.

3. Xylitol

Definition: sweet-tasting crystalline alcohol derived from xylose, present in some plant tissues and used as an artificial sweetener in foods
Synonyms: sugar alcohol
Example: Excessive consumption of xylitol can cause digestive side effects.

4. Xylylene

Definition: any of several isomeric bivalent radicals C₈H₈ derived from the three xylenes by removal of one hydrogen atom from each of two carbon atoms
Synonyms: (none)
Example: Certain substituted derivatives of xylylenes are however highly stable.

5. Xyris

Definition: a large genus (the type of the family Xyridaceae) of chiefly American marsh plants having mostly yellow flowers
Synonyms: yellow-eyed grass
Example: Xyris is found in the states of Alabama, Georgia, and Tennessee.

6. Xyst

Definition: a covered portico especially the one used in ancient Greece
Synonyms: colonnade, loggia
Example: Xyst was mostly used in ancient Greece for athletics.

7. Xanthine

Definition: a crystalline compound found in blood and urine which is an intermediate in the metabolic breakdown of nucleic acids to uric acid
Synonyms: (none)
Example: Caffeine is the most important xanthine alkaloid.

8. Xenagogue

Definition: a tour guide
Synonyms: docent, cicerone
Example: While the role of the superhero in disability leadership gets overplayed, the role of xenagogue has room to grow.

9. Xenocryst

Definition: a crystal in an igneous rock which is not derived from the original magma
Synonyms: none
Example: Xenocryst occurs rarely in our environment.

10. Xanthogen

Definition: the radical C₂H₅OCSS− derived from xanthic acid
Synonyms: none
Example: Xanthogen formates are frequently used as sulfide mineral collectors.

Nouns That Start with X You Rarely Use

The majority of the X-nouns are hardly a part of our discussions and talks, however, using these can help you establish a good first impression. So, let’s see a few of these nouns.

1. Xenurine

Definition: any armadillo of the former genus Xenurus
Synonyms: cabassou, kabassou
Example: Xenurines are not carnivores.

2. Xenotransplantation

Definition: the process of grafting or transplanting organs or tissues between members of different species
Synonyms: xenotransplant
Example: Xenotransplantation has the potential to alleviate the critical shortage of organs for transplantation in humans.

3. Xenopus

Definition: the African clawed frog, much used in embryological research and formerly in pregnancy testing, as it produces eggs in response to substances in the urine of a pregnant woman
Synonyms: clawed frog
Example: Xenopus laevis lives in warm, stagnant grassland ponds as well as in streams in arid and semi-arid regions.

4. Xenophobia

Definition: dislike of or prejudice against people from other countries
Synonyms: racism, ethnocentricity, racial hatred
Example: People who express xenophobia typically believe that their culture or nation is superior.

5. Xenophile

Definition: one attracted to foreign things
Synonyms: none
Example: I am not a xenophile.

6. Xenomorph

Definition: a xenomorph is a type of alien from the science-fiction horror franchise Alien known for its grotesque appearance and parasitic form of reproduction
Synonyms: alien
Example: Some fans of the Alien franchise have complained that xenomorph isn’t really a good name for an unknown alien species.

7. Xylorimba

Definition: a percussion instrument resembling the xylophone with a tubular metal resonator under each bar and an extended range which includes that of the marimba
Synonyms: (none)
Example: Do you know how to operate xylorimba?

8. Xenology

Definition: the scientific study of alien biology, cultures
Synonyms: none
Example: Have you ever heard of the xenology department?

9. Xenophobe

Definition: a person having a dislike of or prejudice against people from other countries
Synonyms: antiforeign, anti-immigrant
Example: Dwight is not a xenophobe.

10. Xenoglossy

Definition: is the supposedly paranormal phenomenon in which a person is able to speak or write a language they could not have acquired by natural means
Synonyms: xenoglossia
Example: Almost all cases have been documented xenoglossy as part of a neurological problem origin.

Positive Nouns That Start with X

The last section in this article is of the positive nouns that start with X. In a formal environment it is crucial to present your opinion in a very positive way. Hence these nouns can be essential for pleasant communication.

1. X-factor

Definition: noteworthy quality or talent
Synonyms: wow factor, uniqueness
Example: Ferrari makes fewer cars using a high-quality component with expert hands, that is the X-Factor.

2. Xenas

Definition: a confident, strong woman
Synonyms: mighty, strong, confident
Example: Sandra is one of the most successful business ladies, she is a xenas.

3. Xenagogue

Definition: acting as a guide; guiding someone
Synonyms: tour guide
Example: He takes the form of The Xenagogue for us, and leads us into a place that is unimaginable, yet inevitable.

4. Xenismos

Definition: offering meal (ritual)
Synonyms: offering, ritual
Example: He arranged xenismos for orphans of the whole city.

5. Xenodocheionology

Definition: hotel and inn lore
Synonyms: lore, myths
Example: This xenodocheionology provides free shelter for the poor and the deprived.

6. Xenodochy

Definition: receiving of strangers
Synonyms: hospitality, fellowship
Example: The people of Beijing are famous for their xenodochy.

7. Xenolalia

Definition: speaking a language you never learned
Synonyms: multi-lingual, speaking in tongues
Example: She traveled to Johnsonville, and reportedly experienced the gift of xenolalia and spoke the Kru language.

8. Xenomania

Definition: the pleasure of meeting strangers
Synonyms: passion, inclination
Example: They treated the passengers wholeheartedly out of xenomania.

9. Xper

Definition: someone that is an extreme programmer
Synonyms: programmer, coder
Example: Joe can code any program, he is an xper.

10. Xoanon

Definition: primitive wood statue
Synonyms: carving, cult image
Example: A mode of divination by movements of a xoanon of Apollo was also practiced.

Nouns That Start with X – Full List (124 words)

X
Xalam
Xanthamide
Xanthan
Xanthate
Xanthelasma
Xanthide
Xanthidium
Xanthin
Xanthine
Xanthinine
Xanthippe
Xanthium
Xanthochroi
Xanthogen
Xanthogenate
Xanthoma
Xanthophane
Xanthophyll
Xanthoprotein
Xanthopuccine
Xanthorhamnin
Xanthorhiza
Xanthorhoea
Xanthorrhoea
Xanthose
Xanthosis
Xanthoxylene
Xanthoxylum
X-Axis
Xd
Xebec
Xeme
Xenagogue
Xenelasia
Xenium
Xenobiotic
Xenocrysts
Xenodocheionology
Xenodochium
Xenodochy
Xenogamy
Xenogenesis
Xenograft
Xenografts
Xenolith
Xenoliths
Xenomania
Xenomi
Xenon
Xenophile
Xenophilia
Xenophobe
Xenophobia
Xenopterygii
Xenotime
Xenurine
Xenyl
Xeraphim
Xeres
Xerif
Xeriff
Xeroderma
Xeronate
Xerophagy
Xerophthalmia
Xerophthalmy
Xerophyte
Xerostomia
Xesturgy
Xfactor
X-Factor
Xiphias
Xiphidium
Xiphiplastron
Xiphisternum
Xiphius
Xiphodon
Xiphosura
Xiphura
X-Mas
Xoanon
X-Ray
Xu
X-Wing
Xylamide
Xylanthrax
Xylate
Xylem
Xylene
Xylenol
Xylidine
Xylindein
Xylite
Xylitol
Xylitone
Xylobalsamum
Xylocopa
Xylogen
Xylograph
Xylographer
Xylography
Xyloidin
Xylol
Xylonite
Xylophaga
Xylophagan
Xylophagides
Xylophilan
Xylophone
Xylopyrography
Xyloquinone
Xylorcin
Xylose
Xylostein
Xylotile
Xylotrya
Xylyl
Xylylene
Xyris
Xyst
Xystarch
Xyster
Xystus

Final thoughts on Nouns That Start with X

If you weren’t able to find new nouns beginning with X that would gratify your desire of polishing your communication skills then rest assured as there are plenty of other lists that will help you learn and implement a lot of imaginative and creative nouns. Most of the nouns starting with X are not monotonous so it is crucial to remember that the words in English literature will remain the same however the way people use them while writing or speaking can leave a good impact. So, make sure that you customize your writing style along with learning new words.

We know that nouns that start with X are not widely used but if you were able to find some new helpful nouns do tell us about them in the comment section.