15-letter words containing r, o, m, i
- magnetic course — a course whose bearing is given relative to the magnetic meridian of the area.
- magnetic mirror — a region in a magnetic bottle where the magnetic field increases abruptly, causing charged particles that enter it to be reflected.
- magnetoelectric — of or relating to the induction of electric current or electromotive force by means of permanent magnets.
- 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.
- mail order firm — a company that sells goods by mail order
- 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.
- majority leader — the leader of the majority party in a legislative body, especially the party member who directs the activities of the majority party on the floor of either the Senate or the House of Representatives.
- make a horlicks — to make a mistake or a mess
- make certain of — to ensure (that one will get something); confirm
- make it hot for — having or giving off heat; having a high temperature: a hot fire; hot coffee.
- malacopterygian — belonging or pertaining to the Malacopterygii (Malacopteri), a group of soft-finned, teleost fishes.
- malappropriated — misused or mishandled
- malconformation — Imperfect, disproportionate, or abnormal formation; disproportion of parts.
- 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-o'-war bird — frigate bird.
- man-of-war bird — frigate bird.
- man-of-war fish — a small, tropical fish, Nomeus gronovii, that lives among the tentacles of the Portuguese man-of-war.
- managing editor — an editor assigned to the supervision and coordination of certain editorial activities of a newspaper, magazine, book publishing company, or the like. Abbreviation: M.E., m.e.
- mandarin collar — a narrow, stand-up collar, not quite meeting at the front.
- mandarin orange — mandarin (def 4).
- manoeuvrability — The quality of being manoeuvrable.
- manorial system — manorialism.
- māori battalion — the Māori unit of the 2nd New Zealand Expeditionary Force in World War II
- marching orders — military orders, esp to infantry, giving instructions about a march, its destination, etc
- marcus antonius — Mark (Marcus Antonius) 83?–30 b.c, Roman general: friend of Caesar; member of the second triumvirate and rival of Octavian.
- margaritiferous — yielding or wearing pearls
- margin of error — statistics: variance
- marginalisation — (British) alternative spelling of marginalization.
- marginalization — to place in a position of marginal importance, influence, or power: the government's attempts to marginalize criticism and restore public confidence.
- mariano vallejo — César [Spanish se-sahr] /Spanish ˈsɛ sɑr/ (Show IPA), 1895–1938, Peruvian poet.
- marigold window — wheel window.
- marine surveyor — a person who carries out surveys of ships to determine seaworthiness, etc
- marriage broker — a person who arranges marriages, usually between strangers, for a fee.
- marsupial mouse — any of various mouse-sized to rat-sized marsupials of the family Dasyuridae, occurring in Australia, New Guinea, and Tasmania: some species are rare or endangered.
- mass production — the production or manufacture of goods in large quantities, especially by machinery.
- mass-producible — to produce or manufacture (goods) in large quantities, especially by machinery.
- mastoid process — a large, bony prominence on the base of the skull behind the ear, containing air spaces that connect with the middle ear cavity.
- materialisation — Alternative spelling of materialization.
- materialization — to come into perceptible existence; appear; become actual or real; be realized or carried out: Our plans never materialized.
- matrix bar code — a type of 2D bar code that stores data in a matrix of geometrically shaped dark and light cells that represent bits. See also QR code.
- matrix compiler — Early matrix computations on UNIVAC. Sammet 1969, p.642.
- maxilloturbinal — (anatomy) Pertaining to the maxillary and turbinal regions of the skull.
- mean solar time — time measured by the hour angle of the mean sun.
- measuring spoon — a spoon for measuring amounts, as in cooking, usually part of a set of spoons of different sizes.
- mechanomorphism — the doctrine that the universe is fully explicable in mechanistic terms.