12-letter words containing p, o, t, s
- the-pioneers — a historical novel (1823) by James Fenimore Cooper.
- theophrastus — 372?–287 b.c, Greek philosopher.
- thermosiphon — an arrangement of siphon tubes that enables water in a heating apparatus to circulate by means of convection.
- thermosphere — the region of the upper atmosphere in which temperature increases continuously with altitude, encompassing essentially all of the atmosphere above the mesosphere.
- thiosulphate — any salt of thiosulphuric acid
- third person — the grammatical person used by the speaker of an utterance in referring to anyone or anything other than the speaker or the one (third person singular) or ones (third person plural) being addressed.
- thomas paine — Albert Bigelow [big-uh-loh] /ˈbɪg əˌloʊ/ (Show IPA), 1861–1937, U.S. author and editor.
- thoracoscope — an instrument used for examining the pleural cavity
- time deposit — a deposit that can be withdrawn by the depositor only after giving advance notice or after an agreed period of time has elapsed.
- to play host — If a person or country plays host to an event or an important visitor, they host the event or the visit.
- to play safe — If you play safe or play it safe, you do not take any risks.
- to stop dead — To stop dead means to suddenly stop happening or moving. To stop someone or something dead means to cause them to suddenly stop happening or moving.
- to talk shop — If you say that people are talking shop, you mean that they are talking about their work, and this is boring for other people who do not do the same work.
- tomato aspic — aspic1 (def 2).
- tomato paste — a soft, smooth substance made from crushed tomatoes, used in cooking
- top dressing — tennis court
- top security — ultra secure
- top sergeant — a first sergeant.
- topstitching — decorative stitching, usually near and parallel to a seam, sewn so as to be visible on the right side of a garment, shoe, belt, etc.
- torreys peak — a mountain in central Colorado, in the Front Range, in the E Rocky Mountains. 14,267 feet (4349 meters).
- tourist trap — a place, as a restaurant, shop, or hotel, that exploits tourists by overcharging.
- tracheoscopy — examination of the interior of the trachea, as with a laryngoscope.
- tradespeople — people engaged in trade, esp shopkeepers
- tradesperson — a skilled worker
- trading post — a store established in an unsettled or thinly settled region by a trader or trading company to obtain furs and local products in exchange for supplies, clothing, other goods, or for cash.
- trainspotter — A trainspotter is someone who is very interested in trains and spends time going to stations and recording the numbers of the trains that they see.
- trans person — a person who is transgender or transsexual.
- transit stop — a stop made by a vehicle such as an aircraft, train or bus on the way to its final destination
- transpicuous — transparent.
- transponible — capable of being transposed.
- transpontine — across or beyond a bridge.
- transportive — to carry, move, or convey from one place to another.
- transumption — an act of metaphorical transference
- trapshooting — the sport of shooting at clay pigeons hurled into the air from a trap.
- tree sparrow — a Eurasian bird, Passer montanus, related to but smaller than the house sparrow.
- trepidations — tremulous fear, alarm, or agitation; perturbation.
- trepidatious — tremulous fear, alarm, or agitation; perturbation.
- triadelphous — (of stamens) united by the filaments into three sets or bundles.
- tribespeople — members of a tribe; people living a tribal lifestyle
- tricephalous — with three heads
- triphosphate — a salt derived from triphosphoric acid.
- trophallaxis — (among social insects) the exchange of nutriments or other secretions between members of a colony.
- trophobiosis — the exchange of nourishment between organisms in a symbiotic relationship
- tropicalised — to make tropical, as in character or appearance.
- tropophilous — adapted to a climate characterized by marked environmental changes.
- troposcatter — the scattering or extended propagation of radio signals using the local irregularities in the Earth's troposphere
- trouble spot — an area in which trouble exists or is expected to develop: There are several diplomatic trouble spots in Central America.
- trouser clip — a clip that is worn around the bottom of a trouser leg to stop the material getting caught in the chain of a bicycle
- trunk piston — a piston with a long skirt to take the side thrust, as in an automobile engine.
- turbo pascal — (language, product) Borland International's Pascal. Perhaps the first integrated development environment for MS-DOS. Versions 1.0-3.0: standard Pascal with a few extensions Versions 4.0 (1987) and 5.0: separate compilation. Version 5.5: object-oriented. Version 6.0: Turbo Vision OOP library.