12-letter words containing m, o, p, a
- magnetooptic — pertaining to the effect of magnetism upon the propagation of light.
- magnetopause — the boundary between the earth's magnetosphere and interplanetary space, about 40,000 miles (65,000 km) above the earth, marked by an abrupt decrease in the earth's magnetic induction.
- magnoliopsid — (botany) a member of the class Magnoliopsida. Circumscription of this class will vary with the taxonomic system being used.
- magnotherapy — Any of several alternative medicine therapies using magnetism.
- magpie goose — a black-and-white gooselike bird, Anseranas semipalmatus, of Australia, believed to be the most primitive waterfowl in existence.
- main-topmast — the mast next above the main lower mast.
- main-topsail — a topsail set on the mainmast.
- major planet — planet (def 1a).
- major-planet — Astronomy. Also called major planet. any of the eight large heavenly bodies revolving about the sun and shining by reflected light: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, or Neptune, in the order of their proximity to the sun. Until 2006, Pluto was classified as a planet ninth in order from the sun; it has been reclassified as a dwarf planet. a similar body revolving about a star other than the sun. (formerly) a celestial body moving in the sky, as distinguished from a fixed star, applied also to the sun and moon.
- make poo poo — excrement; feces.
- make whoopee — make whoopee, to engage in uproarious merrymaking.
- malapportion — to apportion improperly or unfairly (voting districts, a legislature, etc.)
- malapropisms — Plural form of malapropism.
- mallophagous — of or relating to any wingless insect of the order Mallophaga
- malpositions — Plural form of malposition.
- mammographic — Of, or pertaining to, mammography.
- manipulation — the act of manipulating.
- manipulators — Plural form of manipulator.
- manipulatory — to manage or influence skillfully, especially in an unfair manner: to manipulate people's feelings.
- mapplethorpe — Robert, 1946–89, U.S. photographer.
- marconigraph — (dated) wireless telegraph.
- mare vaporum — (Sea of Vapors) a dark plain in the first quadrant and near the center of the face of the moon: about 39,000 sq. mi. (101,000 sq. km).
- marimbaphone — (obsolete, music) A kind of percussion idiophone, like the marimba but with steel keys instead of wood, developed in early 20th century United States.
- marine corps — a branch of the U.S. Armed Forces trained for land, sea, and air combat, typically for land combat in conjunction with an amphibious or airborne landing, and whose commandant is responsible to the secretary of the navy.
- mass-produce — to produce or manufacture (goods) in large quantities, especially by machinery.
- massotherapy — treatment by massage.
- master point — a point awarded to a bridge player who has won or placed in an officially recognized tournament.
- mastigophora — a phylum of protozoans comprising nonphotosynthetic, chiefly free-living flagellates: some species are important pathogens of humans and other animals.
- mastigophore — Any flagellate of the phylum Mastigophora.
- matopo hills — the granite hills south of Bulawayo, Zimbabwe, where Cecil Rhodes chose to be buried
- meadow pipit — a common European songbird, Anthus pratensis, with a pale brown speckled plumage: family Motacillidae (pipits and wagtails)
- meclonazepam — A benzodiazepine derivative, similar in structure to clonazepam, with sedative and anxiolytic effects and antiparasitic activity against Schistosoma mansoni.
- media person — a person who works in the mass media
- median point — centroid (def 2).
- mediatorship — the position of a mediator
- meganthropus — a proposed genus of extinct, late lower Pleistocene primates based on two large lower jaws found in Java, and believed to be either Australopithecine or human.
- melanophores — Plural form of melanophore.
- melanotropin — MSH.
- melliphagous — (of an animal) feeding on honey
- melrose park — a city in NE Illinois, near Chicago.
- memphremagog — Lake, a lake on the boundary between the U.S. and Canada, between N Vermont and S Quebec. 30 miles (48 km) long.
- meroplankton — a floating mass of eggs and larvae of organisms that are nektonic or benthic in their adult stage; temporary plankton.
- mesoappendix — the mesentery of the vermiform appendix.
- mesocephalic — having a head with a cephalic index between that of dolichocephaly and brachycephaly.
- mesoplankton — plankton that live at middle depths.
- mesopotamian — an ancient region in W Asia between the Tigris and Euphrates rivers: now part of Iraq.
- metabotropic — Describing a neurotransmitter or cell receptor whose action is mediated by metabolic functions (e.g. enzyme activation).
- metacomputer — an interconnected and balanced set of computers that operate as a single unit
- metal polish — cleaning fluid designed to clean, polish or add shine to metal
- metallograph — a microscope for observing the microstructure of metals.