12-letter words containing p, o, i, r
- drop curtain — a curtain that is lowered into position from the flies.
- drop forging — a product made by drop-forging
- drop initial — inset initial.
- drop shipper — a wholesaler or distributor who conducts business in drop shipments.
- 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.
- ectoparasite — an external parasite (opposed to endoparasite).
- electrophile — (chemistry) a compound or functional group that is attractive to, and accepts electrons, especially accepting an electron pair from a nucleophile to form a bond.
- electrophori — Plural form of electrophorus.
- electrotypic — relating to, or resulting from, electrotypy
- 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
- 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.
- endoperoxide — one of the substances formed in the biosynthesis of prostaglandins
- enteroptosis — Visceroptosis of the intestines.
- 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.
- 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.
- 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.
- 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.
- ethnographic — Relating to ethnography.
- euphorically — In a euphoric manner.
- eutrophicate — (ecology, intransitive) To become eutrophic.
- 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.
- expatriation — Voluntary migration from one's native land to another.
- explorations — Plural form of exploration.
- export drive — a united effort to increase a country's exports
- expressional — Of or pertaining to expression, either in language, the face or the arts.
- exprobration — the act of reproaching
- exprobrative — signifying reproach, reproachful
- expromission — the act of (a creditor) accepting a new debtor as being responsible for the debt of another person
- 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.
- 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.
- fetoproteins — Plural form of fetoprotein.