12-letter words containing e, p, i, t, r
- export drive — a united effort to increase a country's exports
- expressivity — (uncountable) The quality of being expressive.
- 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.
- 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.
- extracampine — (psychiatry, of hallucination) Beyond the possible sensory field.
- extrahepatic — Originating or occurring outside the liver.
- 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.
- fermat prime — (mathematics) A prime number of the form 2^2^n + 1. Any prime number of the form 2^n+1 must be a Fermat prime. Fermat conjectured in a letter to someone or other that all numbers 2^2^n+1 are prime, having noticed that this is true for n=0,1,2,3,4. No further Fermat primes are known; several have been factorised, and several more have been proved composite without finding explicit factorisations.
- 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
- filter paper — porous paper used in filtering.
- filter press — an apparatus used for filtration consisting of a set of frames covered with filter cloth on both sides, between which the liquid to be filtered is pumped
- finger paint — paint children apply with fingers
- finger-paint — a jellylike paint, used chiefly by children in painting, usually with their fingers.
- fingerprints — Plural form of fingerprint.
- fire support — support given by artillery and aircraft to infantry and armored vehicles.
- first empire — the empire (1804–14) established in France by Napoleon Bonaparte.
- 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)
- 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.
- foetoprotein — Alternative spelling of fetoprotein.
- fore-topsail — a topsail set on a foremast on a ship.
- foretopsails — Plural form of foretopsail.
- fort pickens — Andrew, 1739–1817, American Revolutionary general.
- fortepianist — the player of a fortepiano
- fortified pa — a Māori hilltop dwelling with trenches and palisades for defensive occupation
- four-striper — a captain in the U.S. Navy.
- 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.
- fruit-picker — a person or a tool that picks fruit from trees
- gerontophile — someone who is sexually attracted to old people
- get to grips — to deal with (a problem or subject)
- giant powder — dynamite composed of nitroglycerin and kieselguhr.
- gift receipt — A gift receipt shows proof of purchase but leaves out the amount spent. It can be used to return goods given as a gift.
- gift-wrapped — A gift-wrapped present is wrapped in pretty paper.
- glucoprotein — glycoprotein.
- glycoprotein — any of a group of complex proteins, as mucin, containing a carbohydrate combined with a simple protein.
- graduateship — the time or condition of being a graduate
- granite peak — the highest elevation in Montana, in the S part. 12,799 feet (3901 meters).