12-letter words containing o, p, t, i
- expositional — Explained in clear terms, as in writing.
- exprobration — the act of reproaching
- exprobrative — signifying reproach, reproachful
- expropriated — Simple past tense and past participle of expropriate.
- expropriates — Third-person singular simple present indicative form of expropriate.
- expugnations — Plural form of expugnation.
- exspoliation — (obsolete) spoliation.
- extemporised — Simple past tense and past participle of extemporise.
- extemporized — Simple past tense and past participle of extemporize.
- extemporizer — One who extemporizes.
- extemporizes — Third-person singular simple present indicative form of extemporize.
- extremophile — A microorganism, especially an archaean, that lives in conditions of extreme temperature, acidity, alkalinity, or chemical concentration.
- extropianism — Belief in, or support for, the theory of extropy.
- factory ship — a whaling ship equipped to process killed whales and to transport the oil and by-products.
- feldspathoid — Also, feldspathoidal. of or relating to a group of minerals similar in chemical composition to certain feldspars except for a lower silica content.
- fetoproteins — Plural form of fetoprotein.
- fiber optics — the branch of optics that deals with the transmission of light through transparent fibers, as in the form of pulses for the transmission of data or communications, or through fiber bundles for the transmission of images.
- fibre optics — optical fibre
- field sports — sports carried on in the open countryside, such as hunting, shooting, or fishing
- fighting top — one of the gun platforms on the lower masts of sailing men-of-war, used in attacking the crew of an enemy ship with swivel guns and muskets
- fire support — support given by artillery and aircraft to infantry and armored vehicles.
- first person — the grammatical person used by a speaker in statements referring to himself or herself (first person singular) or to a group including himself or herself (first person plural)
- fishing port — a town which has a lot of fishing boats
- flavoprotein — an enzyme, containing riboflavin and linked chemically with a protein, active in the oxidation of foods in animal cells.
- fleet prison — (formerly) a London prison, esp used for holding debtors
- fluorapatite — a crystalline mineral, Ca 5 (PO 4) 3 F, formed from hydroxyapatite in the presence of fluoride, that has a hardening effect on bones and teeth.
- foam plastic — a kind of light cellular plastic made by creating bubbles of gas in the liquid material and solidifying it: often used as an insulator
- foetoprotein — Alternative spelling of fetoprotein.
- folsom point — a flint point characteristic of the Folsom tradition, typically leaf-shaped and fluted, with small basal extensions, and used on a projectile, as a spear, for hunting game.
- fore-topsail — a topsail set on a foremast on a ship.
- foretopsails — Plural form of foretopsail.
- fort pickens — Andrew, 1739–1817, American Revolutionary general.
- fort pulaski — Count Casimir [kaz-uh-meer] /ˈkæz əˌmɪər/ (Show IPA), 1748–79, Polish patriot; general in the American Revolutionary army.
- fortepianist — the player of a fortepiano
- fortified pa — a Māori hilltop dwelling with trenches and palisades for defensive occupation
- fosphenytoin — a prodrug that produces phenytoin and is taken to prevent or treat seizures.
- fountain pen — a pen with a refillable reservoir that provides a continuous supply of usually fluid ink to its point.
- four-striper — a captain in the U.S. Navy.
- fowl typhoid — a septicemic disease of fowl, especially chickens, caused by the bacterium Salmonella gallinarum and marked by fever, loss of appetite, thirst, anemic pallor of the skin of the head, and prostration.
- freeing port — an opening in the bottom of a bulwark, for rapid drainage of a weather deck in heavy seas; scupper.
- fried potato — Fried potatoes are pieces of potato cooked in oil or fat.
- frontispiece — an illustrated leaf preceding the title page of a book.
- gaff topsail — Also called fore-and-aft topsail. a jib-headed fore-and-aft sail set above a gaff.
- gaff-topsail — Also called fore-and-aft topsail. a jib-headed fore-and-aft sail set above a gaff.
- gametophytic — (botany) Of or pertaining to a gametophyte plant.
- gap junction — a linkage of two adjacent cells consisting of a system of channels extending across a gap from one cell to the other, allowing the passage of ions and small molecules.
- gastroscopic — Of or pertaining to gastroscopy.
- geophysicist — the branch of geology that deals with the physics of the earth and its atmosphere, including oceanography, seismology, volcanology, and geomagnetism.
- geopolitical — the study or the application of the influence of political and economic geography on the politics, national power, foreign policy, etc., of a state.
- geopotential — the difference between the potential energy of a mass at a given altitude and the potential energy of an identical mass at sea level, equivalent to the energy required to move the mass from sea level to the given altitude.