17-letter words containing l, e, a, t
- lebanon mountains — a mountain range extending the length of Lebanon, in the central part. Highest peak, 10,049 feet (3063 meters).
- lebesgue integral — an integral obtained by application of the theory of measure and more general than the Riemann integral.
- legal aid society — an organization providing free legal guidance and service to persons who cannot afford a lawyer.
- legendre equation — a differential equation of the form (1− x 2) d2y/dx2 − 2 xdy/dx + a (a + 1) y = 0, where a is an arbitrary constant.
- leibniz mountains — a mountain range on the SW limb of the moon, containing the highest peaks (10 000 metres) on the moon
- lempert operation — fenestration (def 3c).
- letters of marque — a former government document authorizing an individual to make reprisals on the subjects of an enemy nation, specif. to arm a ship and capture enemy merchant ships and cargo
- lettre de creance — letter of credit.
- level compensator — an automatic gain control device used in the receivers of telegraphic circuits.
- lewis with harris — the northernmost island of the Hebrides, in NW Scotland. 825 sq. mi. (2135 sq. km).
- lexical insertion — the process in which actual morphemes of a language are substituted either for semantic material or for place-fillers in the course of a derivation of a sentence
- liberal democrats — (in Britain) a political party with centrist policies; established in 1988 as the Social and Liberal Democrats when the Liberal Party merged with the Social Democratic Party; renamed Liberal Democrats in 1989
- liberal education — an education based primarily on the liberal arts, emphasizing the development of intellectual abilities as opposed to the acquisition of professional skills.
- lie in wait (for) — to wait so as to catch after planning an ambush or trap (for)
- life and/or death — If you say that something is a matter of life and death, you are emphasizing that it is extremely important, often because someone may die or suffer great harm if people do not act immediately.
- life of the party — most lively, outgoing person
- lifestyle disease — a disease that potentially can be prevented by changes in diet, environment, and lifestyle, such as heart disease, stroke, obesity, and osteoporosis
- light heavyweight — a boxer or other contestant intermediate in weight between a middleweight and a heavyweight, especially a professional boxer weighing up to 175 pounds (80 kg).
- light in the head — dizzy; giddy
- light machine gun — any air-cooled machine gun having a caliber not greater than 0.30 inches (7.6 mm).
- light mineral oil — a colorless, oily, almost tasteless, water-insoluble liquid, usually of either a standard light density (light mineral oil) or a standard heavy density (heavy mineral oil) consisting of mixtures of hydrocarbons obtained from petroleum by distillation: used chiefly as a lubricant, in the manufacture of cosmetics, and in medicine as a laxative.
- limited liability — a liability restricted by law or contract, as the liability of owners of shares in a corporation or limited company, or that of a special partner.
- linear assignment — assignment problem
- liquid petrolatum — mineral oil.
- liquid propellant — a rocket propellant in liquid form.
- listings magazine — a magazine with lists of TV and radio schedules
- literacy campaign — a campaign designed to reduce illiteracy and promote literacy in a country, area, etc
- literary executor — a person entrusted with the publishable works and other papers of a deceased author.
- lithium carbonate — a colorless crystalline compound, Li 2 CO 3 , slightly soluble in water: used in ceramic and porcelain glazes, pharmaceuticals, and luminescent paints.
- litigation friend — a person acting on behalf of an infant or other person under legal disability
- little black book — an address book, esp. one kept by a man, with the names of women companions considered available for dating
- live and let live — be tolerant of others
- livingstone daisy — a gardener's name for various species of Mesembryanthemum, esp M. criniflorum, grown as garden annuals (though several are perennial) for their brightly coloured showy flowers: family Aizoaceae
- load displacement — the weight, in long tons, of a cargo vessel loaded so that the summer load line touches the surface of the water.
- local anaesthesia — the use of anaesthetics that affect a particular area of the body
- local anaesthetic — sth injected to numb a body part for pain relief
- local examination — any of various examinations, such as the GCSE, set by university boards and conducted in local centres, schools, etc
- loggerhead turtle — a sea turtle, Caretta caretta, having a large head: now greatly reduced in number.
- logical operation — Boolean operation.
- longitudinal wave — a wave in which the direction of displacement is the same as the direction of propagation, as a sound wave.
- lose the exchange — to lose a rook in return for a bishop or knight
- louisiana tanager — western tanager.
- lower paleolithic — See under Paleolithic.
- luminous exitance — the ability of a surface to emit light expressed as the luminous flux per unit area at a specified point on the surface
- lumpenproletariat — the lowest level of the proletariat comprising unskilled workers, vagrants, and criminals and characterized by a lack of class identification and solidarity.
- lymphadenopathies — Plural form of lymphadenopathy.
- macfarlane burnet — Sir (Frank) Macfarlane [muh k-fahr-luh n] /məkˈfɑr lən/ (Show IPA), 1899–1985, Australian physician: Nobel Prize in Physiology 1960.
- macroevolutionary — Pertaining to, or as a result of macroevolution.
- magnesium sulfate — a white, water-soluble salt, MgSO 4 , used chiefly in medicine and in the processing of leather and textiles.
- magnetic monopole — a hypothetical very heavy particle with an isolated magnetic north pole or magnetic south pole.