12-letter words containing s, p, r, o
- dryopithecus — an extinct genus of generalized hominoids that lived in Europe and Africa during the Miocene Epoch and whose members are characterized by small molars and incisors.
- dual-purpose — serving two functions.
- eavesdropped — Simple past tense and past participle of eavesdrop.
- eavesdropper — to listen secretly to a private conversation.
- ectoparasite — an external parasite (opposed to endoparasite).
- edaphosaurus — Any of several dinosaurs of the family Edaphosauridae, from the Carboniferous and Permian periods, that had a distinctive dorsal sail or crest.
- eggdrop soup — a soup made by stirring beaten eggs into a simmering broth.
- electroscope — An instrument for detecting and measuring electricity, especially as an indication of the ionization of air by radioactivity.
- electrotypes — Plural form of electrotype.
- ellipsograph — an instrument that draws ellipses
- emancipators — Plural form of emancipator.
- endomorphism — changes in a cooling body of igneous rock brought about by assimilation of fragments of, or chemical reaction with, the surrounding country rock
- endoparasite — A parasite, such as a tapeworm, that lives inside its host.
- enteropneust — a worm-like marine invertebrate
- enteroptosis — Visceroptosis of the intestines.
- entoplastral — relating to an entoplastron
- entoplastron — the median plate of a turtle's plastron
- epanorthosis — (rhetoric) A rhetorical device or element in which a speaker or writer retracts a word that has been spoken and substitutes a stronger or more suitable word; often done for emphasis or sarcasm.
- epimorphosis — a type of development in animals, such as certain insect larvae, in which segmentation of the body is complete before hatching
- epistolarian — A writer of epistles.
- ergastoplasm — endoplasm that is associated with protein synthesis
- eriskay pony — a breed of medium-sized pony, typically grey, with a dense waterproof coat. The Eriskay is the only surviving variety of the native ponies of the Western Isles of Scotland
- escape route — way out: of situation
- espresso bar — a coffee house that specializes in espresso coffee and other coffee drinks with an espresso base
- evaporations — Plural form of evaporation.
- exasperation — A feeling of intense irritation or annoyance.
- executorship — The office or position of an executor.
- expansionary — (of a policy or action) intended to result in economic or political expansion.
- expectorants — Plural form of expectorant.
- explorations — Plural form of exploration.
- export house — a company that does not manufacture goods but is instead concerned solely with the financing or handling of their export
- expressional — Of or pertaining to expression, either in language, the face or the arts.
- expromission — the act of (a creditor) accepting a new debtor as being responsible for the debt of another person
- expropriates — Third-person singular simple present indicative form of expropriate.
- extemporised — Simple past tense and past participle of extemporise.
- extemporizes — Third-person singular simple present indicative form of extemporize.
- extrapolates — Third-person singular simple present indicative form of extrapolate.
- 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.
- 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
- 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)
- fisherpeople — Plural form of fisherperson.
- fisherperson — A fisherman or fisherwoman.
- fishing port — a town which has a lot of fishing boats
- flash powder — powder that could be ignited to provide a bright light to take a photograph
- fleet prison — (formerly) a London prison, esp used for holding debtors