12-letter words containing a, p, o, r
- ectypography — a form of etching or engraving in which the design is produced in relief
- edaphosaurus — Any of several dinosaurs of the family Edaphosauridae, from the Carboniferous and Permian periods, that had a distinctive dorsal sail or crest.
- electrograph — A machine used in gravure printing.
- electroplate — Coat (a metal object) by electrolytic deposition with chromium, silver, or another metal.
- electropolar — having, or relating to, electrical polarity
- ellipsograph — an instrument that draws ellipses
- emancipators — Plural form of emancipator.
- emancipatory — Of or pertaining to emancipation or to an emancipator.
- enantiomorph — Each of two crystalline or other geometric forms that are mirror images of each other.
- enantiotropy — the possibility for stable polymorphs to exist in different states on either side of a transition-point temperature
- endoparasite — A parasite, such as a tapeworm, that lives inside its host.
- entoplastral — relating to an entoplastron
- entoplastron — the median plate of a turtle's plastron
- entropically — By means of or in relation to entropy.
- 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.
- epistolarian — A writer of epistles.
- epoxypropane — (organic compound) propylene oxide.
- equiparation — the act of regarding as the same; the act of comparing
- equiprobable — (of two or more things ) equally likely to occur; having equal probability.
- 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
- erythropenia — A decrease in the number of erythrocytes, associated with anemia.
- escape route — way out: of situation
- espresso bar — a coffee house that specializes in espresso coffee and other coffee drinks with an espresso base
- ethnographer — One who practices ethnography.
- ethnographic — Relating to ethnography.
- euphorically — In a euphoric manner.
- eutrophicate — (ecology, intransitive) To become eutrophic.
- evaporations — Plural form of evaporation.
- evaporograph — an instrument which measures and records the rate of evaporation of water into the atmosphere
- exasperation — A feeling of intense irritation or annoyance.
- expansionary — (of a policy or action) intended to result in economic or political expansion.
- expatriation — Voluntary migration from one's native land to another.
- expectorants — Plural form of expectorant.
- expectorated — Simple past tense and past participle of expectorate.
- explorations — Plural form of exploration.
- export agent — an person who acts on behalf of a business to develop a market for a product or service in a foreign country
- export trade — the area of business or industry concerned with the export of goods or services
- expressional — Of or pertaining to expression, either in language, the face or the arts.
- exprobration — the act of reproaching
- exprobrative — signifying reproach, reproachful
- exprobratory — acting as a reproach
- expropriated — Simple past tense and past participle of expropriate.
- expropriates — Third-person singular simple present indicative form of expropriate.
- extemporally — In an extemporal manner.
- extrapolated — Simple past tense and past participle of extrapolate.
- extrapolates — Third-person singular simple present indicative form of extrapolate.
- extropianism — Belief in, or support for, the theory of extropy.
- factor group — quotient group.
- factory ship — a whaling ship equipped to process killed whales and to transport the oil and by-products.