12-letter words starting with tr
- tree swallow — a bluish-green and white swallow, Iridoprocne bicolor, of North America, that nests in tree cavities.
- tree tobacco — a treelike South American plant, Nicotiana glauca, of the nightshade family, having blue-green foliage, heart-shaped leaves, and white, greenish-yellow, or purple flowers, the corolla yellow, grown as an ornamental.
- tree-covered — covered by or having many trees
- trefoil arch — an arch with cusplike intrados.
- trefoil knot — a knot having the form of a trefoil.
- tremendously — extraordinarily great in size, amount, or intensity: a tremendous ocean liner; tremendous talent.
- trench fever — a recurrent fever, often suffered by soldiers in trenches in World War I, caused by a rickettsia transmitted by the body louse.
- trench knife — a short knife for stabbing, sometimes equipped with brass knuckles as a guard, used in modern warfare in hand-to-hand combat.
- trench mouth — Vincent's angina.
- trend-setter — A trend-setter is a person or institution that starts a new fashion or trend.
- trendsetting — establishing or influencing a new trend or fashion.
- trephination — a small circular saw with a center pin mounted on a strong hollow metal shaft to which is attached a transverse handle: used in surgery to remove circular disks of bone from the skull.
- trepidations — tremulous fear, alarm, or agitation; perturbation.
- trepidatious — tremulous fear, alarm, or agitation; perturbation.
- trevor-roper — Hugh (Redwald) [red-wawld] /ˈrɛd wɔld/ (Show IPA), 1914–2003, British historian.
- triacontanol — a long-chain alcohol, CH 3 (CH 2) 28 CH 2 OH, occurring in plant waxes and beeswax, that is a plant growth regulator.
- triadelphous — (of stamens) united by the filaments into three sets or bundles.
- trial docket — docket (def 1).
- trial lawyer — a lawyer who specializes in appearing before trial courts.
- trial period — time during which sth can be evaluated
- trial-docket — Also called trial docket. a list of cases in court for trial, or the names of the parties who have cases pending.
- triatic stay — a backstay for the head of a fore-and-aft-rigged topmast, running down to the head of the lower mast next aft.
- tribespeople — members of a tribe; people living a tribal lifestyle
- tribological — relating to tribology
- tribute band — A tribute band is a pop group that plays the music and copies the style of another, much more famous, pop group.
- tricentenary — of or relating to a period of 300 years
- tricephalous — with three heads
- trichinopoly — a city in central Tamil Nadu, in S India, on the Kaveri River.
- trichogramma — any minute wasp of the genus Trichogramma, comprising a beneficial group of chalcidflies that parasitize the eggs of a variety of insect pests.
- trichologist — the science dealing with the study of the hair and its diseases.
- trichophyton — a parasitic fungus belonging to the genus Trichophyton that can infect human skin, hair, and nails
- trichopteran — trichopterous.
- trichopteron — trichopteran.
- trichotomize — to divide into three parts or categories
- trichotomous — division into three parts, classes, categories, etc.
- trichromatic — pertaining to the use or combination of three colors, as in printing or in color photography.
- trichuriasis — intestinal infestation with the roundworm Trichuris trichiura, producing nausea, abdominal discomfort, and diarrhea, common in tropical areas with poor sanitation.
- trick ending — an ending of a story or play, etc., that employs a surprise element or character to resolve the plot.
- trick riding — the performance of tricks on horseback
- trickishness — the quality of being crafty
- trickle-down — of, relating to, or based on the trickle-down theory: the trickle-down benefits to the local community.
- trickstering — the practice of playing tricks
- tricorporate — having three bodies
- tricuspidate — having three cusps or flaps.
- trifoliolate — having three leaflets, as a compound leaf.
- trifurcation — to divide into three forks or branches.
- trigger word — a word that initiates a process or course of action
- triglyceride — an ester obtained from glycerol by the esterification of three hydroxyl groups with fatty acids, naturally occurring in animal and vegetable tissues: an important energy source forming much of the fat stored by the body.
- trigonometer — any of various instruments used in trigonometry
- trigonometry — the branch of mathematics that deals with the relations between the sides and angles of plane or spherical triangles, and the calculations based on them.