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158 Nouns That Start With TRI

Part of Speech:
Word Definitions Synonyms
triacetate (noun) cellulose acetate that is relatively slow to burn; used instead of celluloid for motion-picture film Synonyms: cellulose triacetate
triad (noun) the cardinal number that is the sum of one and one and one Synonyms: leash, threesome, trinity, trio, triplet, troika, three, trey, tierce, 3, III, deuce-ace, tercet, ternary, ternion, terzetto, trine
(noun) a set of three similar things considered as a unit Synonyms: triple, trio, triplet
(noun) three people considered as a unit Synonyms: threesome, trinity, trio
(noun) a three-note major or minor chord; a note and its third and fifth tones Synonyms: common chord
triage (noun) sorting and allocating aid on the basis of need for or likely benefit from medical treatment or food
trial (noun) the act of testing something Synonyms: run, test
(noun) trying something to find out about it Synonyms: test, tryout, trial run
(noun) the act of undergoing testing Synonyms: test
(noun) (law) the determination of a person's innocence or guilt by due process of law
(noun) (sports) a preliminary competition to determine qualifications
(noun) an annoying or frustrating or catastrophic event Synonyms: visitation, tribulation
triamcinolone (noun) a synthetic corticosteroid (trade names Aristocort or Aristopak or Kenalog) used as an anti-inflammatory agent Synonyms: Kenalog, Aristocort, Aristopak
triangle (noun) a three-sided polygon Synonyms: trigon, trilateral
(noun) something approximating the shape of a triangle
(noun) any of various triangular drafting instruments used to draw straight lines at specified angles
(noun) a percussion instrument consisting of a metal bar bent in the shape of an open triangle
triangularity (noun) the property of being shaped like a triangle
triangulation (noun) a trigonometric method of determining the position of a fixed point from the angles to it from two fixed points of a known distance apart; useful in navigation
(noun) a method of surveying; the area is divided into triangles and the length of one side and its angles with the other two are measured, then the lengths of the other sides can be calculated
triazine (noun) any of three isomeric compounds having three carbon and three nitrogen atoms in a six-membered ring
triazolam (noun) a form of benzodiazepine (trade name Halcion) frequently prescribed as a sleeping pill; usually given to people who have trouble falling asleep Synonyms: Halcion
tribade (noun) a female homosexual Synonyms: gay woman, lesbian
tribadism (noun) a form of lesbianism that simulates heterosexual intercourse
tribalisation (noun) the act of making tribal; unification on a tribal basis Synonyms: tribalization
tribalism (noun) the state of living together in tribes
(noun) the beliefs of a tribal society
tribalization (noun) the act of making tribal; unification on a tribal basis Synonyms: tribalisation
tribe (noun) a social division of (usually preliterate) people Synonyms: folk
(noun) a federation (as of American Indians) Synonyms: federation of tribes
(noun) (biology) a taxonomic category between a genus and a subfamily
(noun) group of people related by blood or marriage Synonyms: kin, kin group, kindred, kinship group, clan
tribesman (noun) someone who lives in a tribe
tribologist (noun) a specialist in tribology
tribology (noun) the branch of engineering that deals with the interaction of surfaces in relative motion (as in bearings or gears): their design and friction and wear and lubrication
tribromoethanol (noun) an intravenous anesthetic Synonyms: tribromoethyl alcohol
tribromomethane (noun) colorless liquid haloform CHBr3 Synonyms: bromoform
tribulation (noun) an annoying or frustrating or catastrophic event Synonyms: visitation, trial
tribunal (noun) an assembly (including one or more judges) to conduct judicial business Synonyms: judicature, court
tribune (noun) (ancient Rome) an official elected by the plebeians to protect their interests
(noun) the apse of a Christian church that contains the bishop's throne
tribuneship (noun) the position of tribune
tributary (noun) a branch that flows into the main stream Synonyms: feeder, confluent, affluent
tribute (noun) something given or done as an expression of esteem Synonyms: testimonial
(noun) payment by one nation for protection by another
(noun) payment extorted by gangsters on threat of violence Synonyms: protection
tributyrin (noun) a bitter oily triglyceride of butyric acid; a form of butyrin
trice (noun) a very short time (as the time it takes the eye to blink or the heart to beat) Synonyms: wink, flash, jiffy, New York minute, instant, heartbeat, split second, blink of an eye, twinkling
triceps (noun) any skeletal muscle having three origins (but especially the triceps brachii)
triceratops (noun) huge ceratopsian dinosaur having three horns and the neck heavily armored with a very solid frill
trichina (noun) parasitic nematode occurring in the intestines of pigs and rats and human beings and producing larvae that form cysts in skeletal muscles Synonyms: Trichinella spiralis
trichiniasis (noun) infestation by trichina larvae that are transmitted by eating inadequately cooked meat (especially pork); larvae migrate from the intestinal tract to the muscles where they become encysted Synonyms: myositis trichinosa, trichinosis
trichinosis (noun) infestation by trichina larvae that are transmitted by eating inadequately cooked meat (especially pork); larvae migrate from the intestinal tract to the muscles where they become encysted Synonyms: myositis trichinosa, trichiniasis
trichion (noun) point where the hairline meets the midpoint of the forehead Synonyms: crinion
trichloride (noun) any compound containing three chlorine atoms in each molecule
trichlormethiazide (noun) diuretic drug (trade name Naqua) used to treat hypertension Synonyms: Naqua
trichloroethane (noun) a heavy colorless highly toxic liquid used as a solvent to clean electronic components and for dry cleaning and as a fumigant; causes cancer and liver and lung damage Synonyms: TCE, trichloroethylene
trichloroethylene (noun) a heavy colorless highly toxic liquid used as a solvent to clean electronic components and for dry cleaning and as a fumigant; causes cancer and liver and lung damage Synonyms: TCE, trichloroethane
trichloromethane (noun) a volatile liquid haloform (CHCl3); formerly used as an anesthetic Synonyms: chloroform
trichobezoar (noun) a compact mass of hair that forms in the alimentary canal (especially in the stomach of animals as a result of licking fur) Synonyms: hair ball, hairball
trichodesmium (noun) large colonial bacterium common in tropical open-ocean waters; important in carbon and nitrogen fixation
trichomonad (noun) cause of trichomoniasis in women and cattle and birds
trichomoniasis (noun) infection of the vagina
trichopteran (noun) caddis fly Synonyms: trichopteron, trichopterous insect
trichopteron (noun) caddis fly Synonyms: trichopteran, trichopterous insect
trichotillomania (noun) an irresistible urge to pull out your own hair
trichotomy (noun) being threefold; a classification into three parts or subclasses
trichroism (noun) pleochroism of a crystal so that it exhibits three different colors when viewed from three different directions
trichromacy (noun) the normal ability to see colors Synonyms: chromatic vision, color vision
trichuriasis (noun) infestation by a roundworm; common in tropical areas with poor sanitation
trick (noun) a cunning or deceitful action or device Synonyms: fast one
(noun) a period of work or duty
(noun) an attempt to get you to do something foolish or imprudent
(noun) a ludicrous or grotesque act done for fun and amusement Synonyms: joke, prank, put-on, caper, antic
(noun) an illusory feat; considered magical by naive observers Synonyms: illusion, magic, magic trick, deception, conjuration, conjuring trick, thaumaturgy, legerdemain
(noun) a prostitute's customer Synonyms: john, whoremaster, whoremonger
(noun) (card games) in a single round, the sequence of cards played by all the players; the high card is the winner
tricker (noun) someone who plays practical jokes on others Synonyms: hoaxer, practical joker, prankster, cut-up, trickster
trickery (noun) verbal misrepresentation intended to take advantage of you in some way Synonyms: jiggery-pokery, hanky panky, hocus-pocus, skulduggery, skullduggery, slickness
(noun) the use of tricks to deceive someone (usually to extract money from them) Synonyms: guile, wile, shenanigan, chicane, chicanery
trickiness (noun) the quality of being a slippery rascal Synonyms: rascality, shiftiness, slipperiness
(noun) the quality of requiring skill or caution
trickle (noun) flowing in drops; the formation and falling of drops of liquid Synonyms: dribble, drip
trickster (noun) someone who plays practical jokes on others Synonyms: hoaxer, practical joker, prankster, cut-up, tricker
(noun) someone who leads you to believe something that is not true Synonyms: cheat, slicker, deceiver, cheater, beguiler
(noun) a mischievous supernatural being found in the folklore of many primitive people; sometimes distinguished by prodigious biological drives and exaggerated bodily parts
triclinium (noun) a dining room (especially a dining room containing a dining table with couches along three sides)
(noun) a dining table with couches along three sides in ancient Rome
tricolor (noun) a flag having three colored stripes (especially the French flag) Synonyms: tricolour
tricolour (noun) a flag having three colored stripes (especially the French flag) Synonyms: tricolor
tricorn (noun) cocked hat with the brim turned up to form three points Synonyms: tricorne
tricorne (noun) cocked hat with the brim turned up to form three points Synonyms: tricorn
tricot (noun) a knitted fabric or one resembling knitting
tricycle (noun) a vehicle with three wheels that is moved by foot pedals Synonyms: velocipede, trike
tricyclic (noun) an antidepressant drug that acts by blocking the reuptake of norepinephrine and serotonin and thus making more of those substances available to act on receptors in the brain Synonyms: tricyclic antidepressant, tricyclic antidepressant drug
trident (noun) a spear with three prongs
tridymite (noun) a mineral form of silica
triennial (noun) the 300th anniversary (or the celebration of it) Synonyms: tercentenary, tercentennial
trier (noun) one (as a judge) who examines and settles a case
(noun) one who tries Synonyms: essayer, attempter
trifle (noun) a cold pudding made of layers of sponge cake spread with fruit or jelly; may be decorated with nuts, cream, or chocolate
(noun) a detail that is considered insignificant Synonyms: triviality
(noun) something of small importance Synonyms: triviality, small beer, trivia
trifler (noun) one who behaves lightly or not seriously
trifling (noun) the deliberate act of delaying and playing instead of working Synonyms: dalliance, dawdling
trifluoromethane (noun) colorless gas haloform CHF3 (similar to chloroform) Synonyms: fluoroform
trifoliata (noun) small fast-growing spiny deciduous Chinese orange tree bearing sweetly scented flowers and decorative but inedible fruit: used as a stock in grafting and for hedges Synonyms: Poncirus trifoliata, wild orange, trifoliate orange
trifurcation (noun) the act of splitting into three branches
trig (noun) the mathematics of triangles and trigonometric functions Synonyms: trigonometry
trigeminal (noun) the main sensory nerve of the face and motor nerve for the muscles of mastication Synonyms: nervus trigeminus, fifth cranial nerve, trigeminal nerve, trigeminus
trigeminus (noun) the main sensory nerve of the face and motor nerve for the muscles of mastication Synonyms: nervus trigeminus, fifth cranial nerve, trigeminal, trigeminal nerve
trigger (noun) lever that activates the firing mechanism of a gun Synonyms: gun trigger
(noun) a device that activates or releases or causes something to happen
(noun) an act that sets in motion some course of events Synonyms: induction, initiation
triggerfish (noun) any of numerous compressed deep-bodied tropical fishes with sandpapery skin and erectile spines in the first dorsal fin
triggerman (noun) a professional killer who uses a gun Synonyms: gun, shooter, torpedo, hired gun, hit man, hitman, gun for hire, gunman, gunslinger
triglyceride (noun) glyceride occurring naturally in animal and vegetable tissues; it consists of three individual fatty acids bound together in a single large molecule; an important energy source forming much of the fat stored by the body
trigon (noun) a three-sided polygon Synonyms: triangle, trilateral
(noun) (astrology) one of four groups of the zodiac where each group consists of three signs separated from each other by 120 degrees Synonyms: triplicity
(noun) a triangular lyre of ancient Greece and Rome
trigonometrician (noun) a mathematician specializing in trigonometry
trigonometry (noun) the mathematics of triangles and trigonometric functions Synonyms: trig
trigram (noun) a word that is written with three letters in an alphabetic writing system
triiodomethane (noun) a yellowish crystalline solid with a penetrating odor; sometimes used as an antiseptic dressing Synonyms: iodoform
triiodothyronine (noun) thyroid hormone similar to thyroxine but with one less iodine atom per molecule and produced in smaller quantity; exerts the same biological effects as thyroxine but is more potent and briefer Synonyms: T, liothyronine
trike (noun) a vehicle with three wheels that is moved by foot pedals Synonyms: velocipede, tricycle
trilateral (noun) a three-sided polygon Synonyms: trigon, triangle
trilby (noun) a hat made of felt with a creased crown Synonyms: homburg, Stetson, fedora, felt hat
trill (noun) a note that alternates rapidly with another note a semitone above it Synonyms: shake
(noun) the articulation of a consonant (especially the consonant `r') with a rapid flutter of the tongue against the palate or uvula
trillion (noun) a very large indefinite number (usually hyperbole) Synonyms: zillion, jillion, million, gazillion, bazillion, billion
(noun) the number that is represented as a one followed by 18 zeros in the UK Synonyms: one million million million
(noun) the number that is represented as a one followed by 12 zeros Synonyms: 1000000000000, one million million
trillionth (noun) one part in a trillion equal parts Synonyms: one-trillionth
trillium (noun) any liliaceous plant of the genus Trillium having a whorl of three leaves at the top of the stem with a single three-petaled flower Synonyms: wake-robin, wood lily
trilobite (noun) an extinct arthropod that was abundant in Paleozoic times; had an exoskeleton divided into three parts
trilogy (noun) a set of three literary or dramatic works related in subject or theme
trim (noun) a state of arrangement or appearance Synonyms: trimness
(noun) a decoration or adornment typically on the edge of a garment Synonyms: trimming, passementerie
(noun) attitude of an aircraft in flight when allowed to take its own orientation
(noun) cutting down to the desired size or shape Synonyms: clipping, trimming
trimaran (noun) a fast sailboat with 3 parallel hulls
trimer (noun) a polymer (or a molecule of a polymer) consisting of three identical monomers

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