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158 Nouns That Start With TRI

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