12-letter words containing op
- ephebophilia — the condition of being sexually attracted to adolescents
- epidiascopes — Plural form of epidiascope.
- episcopacies — Plural form of episcopacy.
- episcopalian — An adherent of episcopacy.
- episcopalism — the belief that a Church should be governed by bishops
- epoxypropane — (organic compound) propylene oxide.
- ergastoplasm — endoplasm that is associated with protein synthesis
- erythropenia — A decrease in the number of erythrocytes, associated with anemia.
- esophagotomy — (surgery) The operation of making an incision into the esophagus for the purpose of removing an obstruction.
- ethnopoetics — A poetical, linguistic and anthropological movement dealing with poetry written by, or in the style of, indigenous peoples.
- eutrophicate — (ecology, intransitive) To become eutrophic.
- exopeptidase — any proteolytic enzyme, such as erepsin, that acts on the terminal bonds in a peptide chain
- exophthalmia — (medicine) The protrusion of the eyeball so that the eyelids will not cover it, in consequence of disease.
- exophthalmic — Having or characterized by protruding eyes.
- exophthalmos — Abnormal protrusion of the eyeball or eyeballs.
- exophthalmus — Alt form exophthalmos.
- expropriated — Simple past tense and past participle of expropriate.
- expropriates — Third-person singular simple present indicative form of expropriate.
- 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.
- 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
- 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
- fisherpeople — Plural form of fisherperson.
- flavoprotein — an enzyme, containing riboflavin and linked chemically with a protein, active in the oxidation of foods in animal cells.
- flip-flopped — shod in flip-flops; wearing flip-flops
- flip-flopper — a person who makes a complete change of policy, opinion, etc
- flop forging — forging of both sides of a piece from the same die, the sides being identical.
- floppy drive — disk drive
- fluoroscoped — Simple past tense and past participle of fluoroscope.
- fluoroscopes — Plural form of fluoroscope.
- fluoroscopic — of or relating to the fluoroscope or fluoroscopy.
- fly the coop — an enclosure, cage, or pen, usually with bars or wires, in which fowls or other small animals are confined for fattening, transportation, etc.
- foetoprotein — Alternative spelling of fetoprotein.
- fore-topmast — the spar or section of a pole mast serving as the topmast of a foremast on a ship.
- fore-topsail — a topsail set on a foremast on a ship.
- foretopmasts — Plural form of foretopmast.
- foretopsails — Plural form of foretopsail.
- forlorn hope — a perilous or desperate enterprise.
- fosbury flop — a modern high-jumping technique whereby the jumper clears the bar headfirst and backwards
- francophilia — Alternative capitalization of Francophilia.
- francophobia — the phenomenon of hating French speakers, culture, or people
- francophones — Plural form of francophone.
- 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.
- galactophore — a galactophorous duct.
- galactoscope — a lactoscope.
- galvanoscope — an instrument for detecting the existence of an electric current and determining its direction.
- gametophores — Plural form of gametophore.