15-letter words containing a, m, o, r, i, s
- hyperovarianism — precocious sexuality in girls due to abnormally heavy ovarian secretion.
- hyperpotassemia — hyperkalemia.
- hypopituitarism — abnormally diminished activity of the pituitary gland, especially of the anterior lobe.
- ibero-maurusian — of or relating to an Epipaleolithic culture of northwestern Africa that preceded the Capsian culture and was once erroneously thought to have originated in southwestern Europe; characterized by the use of backed bladelets, occupation of the maritime plain, and the hunting of the Barbary sheep.
- immunoadsorbent — immunosorbent.
- immunoreactions — Plural form of immunoreaction.
- importunateness — Quality of being importunate.
- improvisational — the art or act of improvising, or of composing, uttering, executing, or arranging anything without previous preparation: Musical improvisation involves imagination and creativity.
- improvisatorial — relating to an improvisator
- improvvisatrice — Alternative form of improvisatrice.
- in some measure — a unit or standard of measurement: weights and measures.
- in your dreams! — You say `In your dreams!' when you think that what someone wants is never going to happen or be true.
- incommensurable — not commensurable; having no common basis, measure, or standard of comparison.
- incommensurably — In an incommensurable manner; immeasurably.
- informativeness — giving information; instructive: an informative book.
- inspection arms — a position in military drill in which the missile chamber of a weapon is open for inspection.
- instrumentation — the arranging of music for instruments, especially for an orchestra.
- intercomparison — mutual comparison
- interparoxysmal — occurring in the period or periods between paroxysms.
- intervalometers — Plural form of intervalometer.
- inverted commas — Inverted commas are punctuation marks that are used in writing to show where speech or a quotation begins and ends. They are usually written or printed as ' ' or " ". Inverted commas are also sometimes used around the titles of books, plays, or songs, or around a word or phrase that is being discussed.
- isolated camera — a television camera used to isolate a subject, part of a sports play, etc., for instant replay.
- isoperimetrical — having equal perimeters
- isothermal-line — Meteorology. a line on a weather map or chart connecting points having equal temperature.
- jeffersonianism — pertaining to or advocating the political principles and doctrines of Thomas Jefferson, especially those stressing minimum control by the central government, the inalienable rights of the individual, and the superiority of an agrarian economy and rural society.
- kissing gourami — a whitish labyrinth fish, Helostoma temmincki, found in southeastern Asia, noted for the habit of pressing its fleshy, protrusible lips against those of another: often kept in aquariums.
- lake miraflores — an artificial lake in Panama, in the S Canal Zone of the Panama Canal
- land of promise — Promised Land.
- lemon-grass oil — a yellowish to brownish oil distilled from the leaves of certain lemon grasses, especially Cymbopogon citratus, used chiefly in perfumery.
- leptosporangium — (botany) A sporangium formed from a single epidermal cell.
- lithochromatics — the art or process of painting in oil on stone and taking impressions from the result
- macaroni cheese — Macaroni cheese is a dish made from macaroni and cheese sauce.
- macro-sociology — the sociological study of large-scale social systems and long-term patterns and processes.
- macroscopically — visible to the naked eye. Compare microscopic (def 1).
- macrosporangium — megasporangium.
- magic mushrooms — a mushroom, Psilocybe mexicana, of Mexico and the southwestern U.S., containing the hallucinogen psilocybin.
- magnesioferrite — (mineralogy) A magnesium iron oxide mineral, a member of the magnetite series of spinels, which forms black metallic octahedral crystals.
- magnetic course — a course whose bearing is given relative to the magnetic meridian of the area.
- mahrisch-ostrau — German name of Moravská Ostrava.
- maid of orléans — Saint ("the Maid of Orléans") 1412?–31, French national heroine and martyr who raised the siege of Orléans.
- main royal mast — the part of the mainmast situated immediately above, and generally formed as a single spar with, the main topgallantmast.
- majoritarianism — rule by a majority, especially the belief that those constituting a simple majority should make the rules for all members of a group, nation, etc.
- make a horlicks — to make a mistake or a mess
- maldistribution — bad or unsatisfactory distribution, as of wealth, among a population or members of a group.
- male prostitute — man who has sex for money
- malpresentation — Abnormal positioning of a fetus at the time of delivery.
- man of his word — a unit of language, consisting of one or more spoken sounds or their written representation, that functions as a principal carrier of meaning. Words are composed of one or more morphemes and are either the smallest units susceptible of independent use or consist of two or three such units combined under certain linking conditions, as with the loss of primary accent that distinguishes black·bird· from black· bird·. Words are usually separated by spaces in writing, and are distinguished phonologically, as by accent, in many languages.
- man-of-war fish — a small, tropical fish, Nomeus gronovii, that lives among the tentacles of the Portuguese man-of-war.
- manorial system — manorialism.
- marching orders — military orders, esp to infantry, giving instructions about a march, its destination, etc