12-letter words containing o, n, e, s, m, a
- longshoreman — a person employed on the wharves of a port, as in loading and unloading vessels.
- machine shop — a workshop in which metal and other substances are cut, shaped, etc., by machine tools.
- mackintoshes — Plural form of mackintosh.
- macronucleus — the larger of the two types of nuclei occurring in ciliate protozoans, having a multiple set of chromosomes and functioning in cell metabolism and protein synthesis.
- macrosegment — a stretch of speech preceded and followed but not interrupted by a pause.
- madisonville — a city in W Kentucky.
- 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.
- magnetotails — Plural form of magnetotail.
- magnetotaxis — movement or orientation of an organism in response to a magnetic field.
- make a noise — to talk a great deal or complain
- make inroads — If one thing makes inroads into another, the first thing starts affecting or destroying the second.
- maledictions — Plural form of malediction.
- malefactions — Plural form of malefaction.
- malnourished — poorly or improperly nourished; suffering from malnutrition: thin, malnourished victims of the famine.
- malversation — improper or corrupt behavior in office, especially in public office.
- manifoldness — (mathematics) multiplicity.
- manoeuvrings — Plural form of manoeuvring.
- mantelboards — Plural form of mantelboard.
- mantoux test — a test for tuberculosis in which a hypersensitive reaction to an intracutaneous injection of tuberculin indicates a previous or current infection.
- mao tse-tung — 1893–1976, Chinese Communist leader: chairman of the People's Republic of China 1949–59; chairman of the Chinese Communist Party 1943–76.
- mare nostrum — our sea, especially the Mediterranean to the ancient Romans.
- 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.
- marionettist — A puppeteer who controls a marionette.
- master mason — (often initial capital letters) a Freemason who has reached the third degree.
- master point — a point awarded to a bridge player who has won or placed in an officially recognized tournament.
- mastigonemes — Plural form of mastigoneme.
- mastoid bone — a large, bony prominence on the base of the skull behind the ear, containing air spaces that connect with the middle ear cavity.
- mechatronics — The synergistic combination of mechanical engineering, electronic engineering and software engineering for the study of automata from an engineering perspective and the control of advanced hybrid systems.
- media person — a person who works in the mass media
- megamillions — Plural form of megamillion.
- 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.
- melancholics — Plural form of melancholic.
- melancholies — a gloomy state of mind, especially when habitual or prolonged; depression.
- melanoblasts — Plural form of melanoblast.
- melanogaster — Any of several fungi of the genus Melanogaster.
- melanophores — Plural form of melanophore.
- memorisation — Alternative spelling of memorization.
- mendaciously — In a lying or deceitful manner.
- menstruation — the periodic discharge of blood and mucosal tissue from the uterus, occurring approximately monthly from puberty to menopause in nonpregnant women and females of other primate species.
- mesoamerican — Alternative form of Mesoamerican.
- mesoappendix — the mesentery of the vermiform appendix.
- mesognathous — having medium, slightly protruding jaws.
- mesoplankton — plankton that live at middle depths.
- mesopotamian — an ancient region in W Asia between the Tigris and Euphrates rivers: now part of Iraq.
- metabolising — Present participle of metabolise.
- metabonomics — (biochemistry, genetics) metabolomics.
- metachronism — An error in chronological ordering in which a character or an event is placed at too late a time.
- metachronous — Medicine/Medical. occurring at a different time than a similar event: metachronous tumors.
- metafictions — Plural form of metafiction.
- metagenomics — (genetics) The study of genomes recovered from environmental samples; especially the differentiation of genomes from multiple organisms or individuals, either in a symbiotic relationship, or at a crime scene.