16-letter words containing e, m, r
- managerial staff — staff in positions of management
- mandarin chinese — the official language of China since 1917; the form of Chinese spoken by about two thirds of the population and taught in schools throughout China
- manganese bronze — an alloy that is about 55 percent copper, 40 percent zinc, and up to 3.5 percent manganese.
- mangrove snapper — gray snapper.
- manhood suffrage — the right of adult male citizens to vote
- manic depression — bipolar disorder.
- manic-depressive — suffering from bipolar disorder.
- manufactured gas — a gaseous fuel created from coal, oil, etc., as differentiated from natural gas.
- mare serenitatis — (Sea of Serenity) a dark plain in the first quadrant of the face of the moon: about 120,000 sq. mi. (310,000 sq. km).
- maremma sheepdog — a large strongly-built sheepdog of a breed with a long, slightly wavy, white coat
- margaret drabble — Margaret, born 1939, English novelist.
- margin of safety — therapeutic index.
- mari el republic — a constituent republic of W central Russia, in the middle Volga basin. Capital: Yoshkar-Ola. Pop: 728 000 (2002). Area: 23 200 sq km (8955 sq miles)
- maria de' medici — French name Marie de Médicis. 1573–1642, queen of France (1600–10) by marriage to Henry IV of France; daughter of Francesco, grand duke of Tuscany. She became regent for her son (later Louis XIII) but continued to wield power after he came of age (1614). She was finally exiled from France in 1631 after plotting to undermine Richelieu's influence at court
- marie antoinette — Marie [muh-ree;; French ma-ree] /məˈri;; French maˈri/ (Show IPA), 1755–93, queen of France 1774–93: wife of Louis XVI.
- marie de medicis — 1573–1642, queen of Henry IV of France: regent 1610–17.
- marine barometer — a barometer for use on shipboard, especially one mounted on gimbals so as to minimize the effects of the motion of the vessel.
- marine biologist — scientist who studies sea life
- marine insurance — ocean marine insurance.
- marine scientist — a scientist concerned with the sea
- maritime command — the naval branch of the Canadian armed forces
- market gardening — Chiefly British. truck farm.
- marmalade orange — a bitter variety of orange suitable for making marmalade
- marriage customs — the acts that are traditionally done in connection with a marriage
- marriage licence — an official document stating that a marriage will be allowed to take place
- marriage license — permit to marry
- marriage partner — a person you are married to
- marriage portion — dowry.
- married quarters — the housing provided on a military base for married servicemen or servicewomen
- marseille prolog — (language) One of the two main dialects of Prolog, the other being Edinburgh Prolog. The difference is largely syntax. The original Marseille Interpreter (1973) was written in Fortran.
- marsh cinquefoil — a variety of cinquefoil, Potentilla palustris, that grows in marshy areas
- martin van buren — Martin, 1782–1862, 8th president of the U.S. 1837–41.
- marxism-leninism — the modification of Marxism by Lenin stressing that imperialism is the highest form of capitalism
- mass destruction — devastation on a large scale
- mass observation — the study of the social habits of people through observation, interviews, etc
- material culture — the aggregate of physical objects or artifacts used by a society.
- matrix mechanics — a formulation of non-relativistic quantum mechanics in which physical quantities are represented by matrices and matrix algebra is used to predict the outcome of physical measurements.
- matter of course — an event or result that is natural or inevitable
- matter of record — a fact or statement that appears on the record of a court and that can be proved or established by producing such record.
- matter-of-course — occurring or proceeding in or as if in the logical, natural, or customary course of things; expected or inevitable.
- matter-of-factly — adhering strictly to fact; not imaginative; prosaic; dry; commonplace: a matter-of-fact account of the political rally.
- matthew flinders — Matthew, 1774–1814, English navigator and explorer: surveyed coast of Australia.
- matthew of paris — c1200–59, English chronicler.
- maximum-security — designed for or housing prisoners regarded as being very dangerous to society.
- mcnaughten rules — (in English law) a set of rules established by the case of Regina v. McNaughten (1843) by which legal proof of insanity in the commission of a crime depends upon whether or not the accused can show either that he did not know what he was doing or that he is incapable of realizing that what he was doing was wrong
- measured daywork — a system of wage payment, usually determined by work-study techniques, whereby the wage of an employee is fixed on the understanding that a specific level of work performance will be maintained
- measuring device — gauge
- mechanochemistry — the field of chemistry that deals with the direct conversion of chemical into mechanical energy.
- mechanoreception — The action of a mechanoreceptor.
- mechanoreceptive — Responsive to mechanical stimuli such as sound and touch.