12-letter words containing i, s, o, p, e, r
- disoperation — a relationship between two organisms in a community that is harmful to both
- disopyramide — a substance, C 21 H 29 N 3 O, used in its phosphate form in the symptomatic and prophylactic treatment of certain cardiac arrhythmias.
- dispensatory — a book in which the composition, preparation, and uses of medicinal substances are described; a nonofficial pharmacopoeia.
- disportments — to divert or amuse (oneself).
- dispossessor — One who dispossesses.
- dispropriate — to deprive of ownership
- distemperoid — resembling distemper.
- doorstepping — talking to someone at the door of their home, for political canvassing or to gather information
- 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).
- 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.
- enteroptosis — Visceroptosis of the intestines.
- 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.
- 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
- 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.
- explorations — Plural form of exploration.
- 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.
- 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
- 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.
- fleet prison — (formerly) a London prison, esp used for holding debtors
- followership — the ability or willingness to follow a leader.
- fore-topsail — a topsail set on a foremast on a ship.
- foreman-ship — a person in charge of a particular department, group of workers, etc., as in a factory or the like.
- foretopsails — Plural form of foretopsail.
- fort pickens — Andrew, 1739–1817, American Revolutionary general.
- fortepianist — the player of a fortepiano
- four-striper — a captain in the U.S. Navy.
- frontispiece — an illustrated leaf preceding the title page of a book.
- get to grips — to deal with (a problem or subject)
- gospel choir — a choir performing gospel music