19-letter words containing a, c, l, m
- line of demarcation — a separation between things deemed to be distinct
- local area terminal — (protocol) (LAT) A DECnet-related, non-routable network protocol.
- logical unit number — (storage) (LUN) A 3-bit identifier used on a SCSI bus to distinguish between up to eight devices (logical units) with the same SCSI ID.
- lord baltimore cake — a yellow layer cake, using only the yolks of eggs and having a fruit-nut filling consisting of pecans, almonds, maraschino cherries, and macaroon crumbs.
- loss-of-containment — Loss-of-containment happens when a fluid which is usually contained somewhere escapes from that place.
- lucia di lammermoor — an opera (1835) by Gaetano Donizetti, based on Sir Walter Scott's novel The Bride of Lammermoor.
- lyon office of arms — Heralds' Office.
- machine translation — changing language of a text by computer
- maestro di cappella — a person in charge of an orchestra, esp a private one attached to the palace of a prince in Italy during the baroque period
- magnetic levitation — the suspension of an object above or below a second object by means of magnetic repulsion or attraction.
- magnetic north pole — the point on Earth to where a compass needle points, and which is situated near the geographic North Pole. However, with time, the exact location can vary.
- make oneself scarce — insufficient to satisfy the need or demand; not abundant: Meat and butter were scarce during the war.
- male chauvinist pig — male chauvinist.
- malice aforethought — a predetermination to commit an unlawful act without just cause or provocation (applied chiefly to cases of first-degree murder).
- malicious falsehood — a lie told by someone who knows the lie is false or knows it will do harm to the person it is concerning
- malleable cast iron — white cast iron that has been malleablized.
- manned space flight — space travel in vehicles with a human crew
- manufacturing plant — factory
- mary mcleod bethune — Mary McLeod [muh-kloud] /məˈklaʊd/ (Show IPA), 1875–1955, U.S. educator and civil-rights leader.
- mary wollstonecraft — Mary (Mary Wollstonecraft Godwin) 1759–97, English author and feminist (mother of Mary Shelley).
- maternity allowance — (in the British National Insurance scheme) a payment made to a pregnant woman who usually works but does not qualify for statutory maternity pay, normally from 11 weeks before confinement for a period of 18 weeks
- mayor of the palace — one of a line of hereditary administrative lieutenants to the Merovingian kings who eventually took over royal function and title in the Frankish kingdoms; a palatine.
- mccarran-walter act — the Immigration and Nationality Act enacted by the U.S. Congress in 1952 that removed racial barriers to immigration and empowered the Department of Justice to deport immigrants or naturalized citizens engaging in subversive activities.
- mechanical scanning — Electronics. a technique for varying the sector covered by a transmitting or receiving antenna by rotating it.
- mechanical-engineer — the branch of engineering dealing with the design and production of machinery.
- medical certificate — a document stating the result of a satisfactory medical examination
- medical examination — physical examination
- melodic minor scale — minor scale (def 2).
- mendel's second law — the principle, originated by Gregor Mendel, stating that when two or more characteristics are inherited, individual hereditary factors assort independently during gamete production, giving different traits an equal opportunity of occurring together.
- meningoencephalitic — Relating to meningoencephalitis.
- meningoencephalitis — Inflammation of the membranes of the brain and the adjoining cerebral tissue.
- mercurial barometer — mercury barometer.
- mercury-vapour lamp — a lamp in which an electric discharge through a low pressure of mercury vapour is used to produce a greenish-blue light. It is used for street lighting and is also a source of ultraviolet radiation
- meter-candle-second — a unit of light-exposure equivalent to one lux for one second.
- methyl methacrylate — a colorless, volatile, flammable, water-insoluble, liquid, unsaturated ester, C 5 H 8 O 2 , that polymerizes readily to a clear plastic.
- metropolitan county — (in England) any of the six conurbations established as administrative units in the new local government system in 1974; the metropolitan county councils were abolished in 1986
- mexican bean beetle — a ladybird beetle, Epilachna varivestis, introduced into the U.S. from Mexico, that feeds on the foliage of the bean plant.
- microelectronically — by microcircuits
- middle palaeolithic — the period between the Lower and the Upper Palaeolithic, usually taken as equivalent to the Mousterian
- miracle of st. mark — a painting (1548) by Tintoretto.
- miscellaneous items — various kinds of thing, esp small purchases
- molar heat capacity — the heat capacity of one mole of a substance.
- molecular astronomy — the branch of astronomy dealing with the study of molecules in space.
- molecular biologist — a specialist in the study of biological phenomena at the molecular level
- monoclonal antibody — antibody produced by a laboratory-grown cell clone, either of a hybridoma or a virus-transformed lymphocyte, that is more abundant and uniform than natural antibody and is able to bind specifically to a single site on almost any chosen antigen or reveal previously unknown antigen sites: used as an analytic tool in scientific research and medical diagnosis and potentially important in the treatment of certain diseases. Abbreviation: MAb.
- mordvinian republic — a constituent republic of W central Russia, in the middle Volga basin. Capital: Saransk. Pop: 888 700 (2002). Area: 26 200 sq km (10 110 sq miles)
- moses-in-the-cradle — a plant, Rhoeo spathacea, native to the West Indies and Central America, having leaves with purple undersides and white flowers enclosed in a boat-shaped envelope formed by two bracts.
- mountain chinchilla — any of several long-tailed rodents of the genus Lagidium, having coarse poor quality fur
- mucopolysaccharides — Plural form of mucopolysaccharide.
- muhammadan calendar — Muslim calendar.