12-letter words containing i, n, a, p, r, o
- deuteranopia — a form of colour blindness in which there is a tendency to confuse blues and greens, and greens and reds, and in which sensitivity to green is reduced
- dictyopteran — any insect of the order Dictyoptera, which comprises the cockroaches and mantises
- dinosaur pen — A traditional mainframe computer room complete with raised flooring, special power, its own ultra-heavy-duty air conditioning, and a side order of Halon fire extinguishers. See boa.
- diprionidian — (of a graptolite) with a row of cellules or serrations on both sides
- dipropellant — bipropellant.
- disapproving — Expressing an unfavorable opinion.
- disoperation — a relationship between two organisms in a community that is harmful to both
- dispensatory — a book in which the composition, preparation, and uses of medicinal substances are described; a nonofficial pharmacopoeia.
- dolphinarium — An aquarium in which dolphins are kept and trained for public entertainment.
- domino paper — a marbleized or figured decorative paper, used for wallpaper, end papers, etc., printed from wood blocks and colored by hand.
- dopaminergic — activated by or sensitive to dopamine.
- drapetomania — (dated) an overwhelming urge to run away (from home, a bad situation, responsibility, etc.).
- drop curtain — a curtain that is lowered into position from the flies.
- drop initial — inset initial.
- 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.
- 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.
- equiparation — the act of regarding as the same; the act of comparing
- 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.
- evaporations — Plural form of evaporation.
- 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.
- explorations — Plural form of exploration.
- expressional — Of or pertaining to expression, either in language, the face or the arts.
- exprobration — the act of reproaching
- extropianism — Belief in, or support for, the theory of extropy.
- fire company — a company of firefighters.
- flavoprotein — an enzyme, containing riboflavin and linked chemically with a protein, active in the oxidation of foods in animal cells.
- foreman-ship — a person in charge of a particular department, group of workers, etc., as in a factory or the like.
- fortepianist — the player of a fortepiano
- francophilia — Alternative capitalization of Francophilia.
- francophobia — the phenomenon of hating French speakers, culture, or people
- gaboon viper — a large, venomous snake, Bitis gabonica, of tropical African forests, having large retractable fangs and geometrically patterned scales of yellow, brown, and sometimes purple.
- garrison cap — overseas cap.
- georgia pine — longleaf pine.
- germanophile — a person who is friendly toward or admires or studies Germany or German culture.
- giant powder — dynamite composed of nitroglycerin and kieselguhr.
- gonadotropic — pertaining to substances formed in the anterior pituitary gland that affect the activity of the ovary or testis.
- gonadotropin — a gonadotropic substance.
- gramophonist — a person who uses a gramophone
- graphophonic — a phonograph for recording and reproducing sounds on wax records.
- haemoprotein — Alternative spelling of hemoprotein.