12-letter words containing p, r, o, n
- 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.
- trichinopoly — a city in central Tamil Nadu, in S India, on the Kaveri River.
- trichophyton — a parasitic fungus belonging to the genus Trichophyton that can infect human skin, hair, and nails
- trichopteran — trichopterous.
- trichopteron — trichopteran.
- tripartition — division into three parts.
- triple crown — an unofficial title held by a horse that wins the Kentucky Derby, the Preakness, and the Belmont Stakes in a single season.
- triple point — the particular temperature and pressure at which the solid, liquid, and gaseous phases of a given substance are all at equilibrium with one another.
- tripolitania — Also, Tripolitania [trip-uh-li-tey-nee-uh, -teyn-yuh; Italian tree-paw-lee-tah-nyah] /ˌtrɪp ə lɪˈteɪ ni ə, -ˈteɪn yə; Italian ˌtri pɔ liˈtɑ nyɑ/ (Show IPA). one of the former Barbary States of N Africa: later a province of Turkey; now a part of Libya.
- tripudiation — the act of dancing for joy
- trojan group — a group of asteroids oscillating about either of two points, equidistant from the sun and Jupiter, that forms an equilateral triangle with the sun and Jupiter.
- trunk piston — a piston with a long skirt to take the side thrust, as in an automobile engine.
- trypanocidal — (of a drug, agent, activity, etc) effective in killing trypanosomes
- twin paradox — a phenomenon predicted by relativity. One of a pair of identical twins is supposed to live normally in an inertial system whilst the other is accelerated to a high speed in a spaceship, travels for a long time, and finally returns to rest beside his twin. The travelled twin will be found to be younger than his brother
- type founder — a person engaged in the making of metallic types for printers.
- typing error — an error made while using a keyboard to write something
- un-opportune — appropriate, favorable, or suitable: an opportune phrase for the occasion.
- un-purposely — intentionally; deliberately: He tripped me purposely.
- unapproached — not approached; not able to be approached or neared
- unapprovable — capable of being approved.
- unchaperoned — not chaperoned; not accompanied by a chaperone
- uncomparable — capable of being compared; having features in common with something else to permit or suggest comparison: He considered the Roman and British empires to be comparable.
- under-report — to give an insufficient account or report of
- underdevelop — to develop (something) short of the required amount: to underdevelop film.
- underexploit — to make insufficient use of
- underexposed — If a photograph is underexposed, it is darker than it should be because the film was not exposed to enough light.
- underpassion — an underlying or subconscious passion
- underpeopled — insufficiently populated
- underperform — If someone underperforms in something such as a sports contest, or if one thing underperforms another thing, they do not perform as well as they could, or they perform less well than the other thing.
- underpowered — (of a machine, vehicle, etc.) having a specified fuel or prime mover: a gasoline-powered engine; an engine-powered pump.
- underproduce — to produce (goods) below full capacity or below demand
- unexplorable — to traverse or range over (a region, area, etc.) for the purpose of discovery: to explore the island.
- unimportance — a lack of importance
- unimportuned — without being forced or impelled
- unimprisoned — not confined in a prison
- unit process — any of a number of standard operations, such as filtration or distillation, that are widely used in various chemical and process industries
- unoppressive — not cruel or harsh
- unpardonable — kind indulgence, as in forgiveness of an offense or discourtesy or in tolerance of a distraction or inconvenience: I beg your pardon, but which way is Spruce Street?
- unpardonably — in a manner that is not excusable; disgracefully
- unpatronized — having few or no patrons
- unperfection — imperfection
- unperforated — pierced with a hole or holes: Punch out along the perforated line.
- unperforming — not performing
- unpersonable — of pleasing personal appearance; handsome or comely; attractive.
- unprocedural — not procedural, not following proper procedures
- unproclaimed — to announce or declare in an official or formal manner: to proclaim war.
- unprocurable — obtainable.
- unproductive — having the power of producing; generative; creative: a productive effort.
- unprofitable — being without profit; not showing or turning a profit: a series of unprofitable ventures.