15-letter words containing a, n, d, i
- mandarin orange — mandarin (def 4).
- manganese oxide — a type of metallic oxide used to colour glass purple
- marching orders — military orders, esp to infantry, giving instructions about a march, its destination, etc
- mariana islands — a group of 15 small islands in the Pacific, E of the Philippines: divided into Guam, a possession of the U.S., and the North Marianas, formally under U.S. trusteeship. 453 sq. mi. (1127 sq. km).
- marie byrd land — former name of Byrd Land.
- marie de france — flourished 12th century, French poet in England.
- marigold window — wheel window.
- mass production — the production or manufacture of goods in large quantities, especially by machinery.
- master cylinder — the hydraulic pump of an automotive braking system that contains a cylinder and one or two pistons, is actuated by the brake pedal, and supplies hydraulic fluid under pressure to the brakes at each wheel.
- maternity dress — a dress worn by a pregnant woman and which is designed to allow for the changes in body size which take place during pregnancy
- media converter — (networking) A component used in Ethernet, although it is not part of the IEEE standard. The IEEE standard states that all segments must be linked with repeaters. Media converters were developed as a simpler, cheaper alternative to repeaters. However, in the 1990s the cost difference between the two is negligible.
- mediastinoscopy — (medicine) A procedure for examining the inside of the mediastinum and the organs it encloses through a small incision, using an endoscope. This is a surgical procedure normally done under general anesthesia.
- medical student — trainee doctor
- medicinal leech — a bloodsucking leech, Hirudo medicinalis, of Europe, introduced into the northeastern U.S., usually green with brown stripes, up to 4 inches (10 cm) long: once used by physicians to bleed patients.
- medieval breton — the Breton language of the Middle Ages, usually dated from the 12th to the mid-17th centuries.
- meibomian gland — any of the small sebaceous glands in the eyelid, beneath the conjunctiva
- melamine-coated — covered with an outer layer of melamine
- melville island — an island in the Arctic Ocean, N of Canada, belonging to Canada. 200 miles (320 km) long; 130 miles (210 km) wide.
- mental disorder — any of the various forms of psychosis or severe neurosis.
- mental handicap — learning disability
- meridian circle — a transit instrument provided with a graduated vertical scale, used to measure the declinations of heavenly bodies and to determine the time of meridian transits.
- methylphenidate — a central nervous system stimulant, C 1 4 H 1 9 NO 2 , used in the control of hyperkinetic syndromes and narcolepsy.
- mid-lent sunday — Laetare Sunday.
- mid-ocean ridge — any of several seismically active submarine mountain ranges that extend through the Atlantic, Indian, and South Pacific oceans: each is hypothesized to be the locus of seafloor spreading.
- middelmannetjie — (South Africa) Ridge between ruts made by wheels in a dirt or gravel road.
- middle american — average middle-class Americans as a group, as distinguished from the rich or poor or the politically extreme.
- middle distance — Also called middle ground, middle plane. Fine Arts. the represented space between the foreground and background in paintings, drawings, etc.
- middle-distance — Also called middle ground, middle plane. Fine Arts. the represented space between the foreground and background in paintings, drawings, etc.
- midgard serpent — a serpent, the child of Loki and Angerboda, who lies wrapped around the world, tail in mouth, and is destined to kill and to be killed by Thor at Ragnarok; Jormungand.
- miles and miles — a long distance
- milk of almonds — almond milk.
- mineral kingdom — minerals collectively.
- minidisc player — a device for playing minidiscs
- minority leader — the party member who directs the activities of the minority party on the floor of a legislative body, as of the U.S. Congress.
- misapprehending — Present participle of misapprehend.
- miscommunicated — Simple past tense and past participle of miscommunicate.
- miscoordinating — of the same order or degree; equal in rank or importance.
- miscoordination — Lack of coordination.
- mixolydian mode — an authentic church mode represented on the white keys of a keyboard instrument by an ascending scale from G to G.
- moderate-income — of or relating to those with a close-to-average income within the overall population.
- mohandas gandhi — Indira [in-deer-uh] /ɪnˈdɪər ə/ (Show IPA), 1917–84, Indian political leader: prime minister 1966–77 and 1980–84 (daughter of Jawaharlal Nehru).
- mongolian idiot — a person affected with Down syndrome
- monosaccharides — Plural form of monosaccharide.
- morphine addict — a person who is addicted to the drug morphine
- moving sidewalk — a moving surface, similar to a conveyor belt, for carrying pedestrians.
- multi-channeled — the bed of a stream, river, or other waterway.
- multidivisional — Of or pertaining to more than one division.
- municipal bonds — a bond issued by a state, county, city, or town, or by a state authority or agency to finance projects.
- muslim calendar — the lunar calendar used by Muslims and reckoned from a.d. 622: the calendar year consists of 354 days and contains 12 months: Moharram, Safar, Rabi I, Rabi II, Jumada I, Jumada II, Rajab, Shaban, Ramadan, Shawwal, Dhu ʾl-Qaʿda, and Dhu ʾl-hijjah. In leap years the month Dhu ʾl-hijjah contains one extra day.
- napoleonic code — Code Napoléon