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17-letter words containing e, a, c

  • law of reflection — the principle that when a ray of light, radar pulse, or the like, is reflected from a smooth surface the angle of reflection is equal to the angle of incidence, and the incident ray, the reflected ray, and the normal to the surface at the point of incidence all lie in the same plane.
  • law of refraction — the principle that for a ray, radar pulse, or the like, that is incident on the interface of two media, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocity of the ray in the first medium to the velocity in the second medium and the incident ray, refracted ray, and normal to the surface at the point of incidence all lie in the same plane.
  • lead acid battery — A lead acid battery is a 12-volt battery for passenger cars and light commercial vehicles consisting of lead-acid cells in series.
  • leading indicator — A leading indicator is an economic indicator that changes before a change in the economy, and that can be used to predict future economic or financial activity.
  • learner's license — a provisional driving licence
  • legal aid society — an organization providing free legal guidance and service to persons who cannot afford a lawyer.
  • legal proceedings — court case
  • leonardo da vinci — Leonardo [lee-uh-nahr-doh,, ley-;; Italian le-aw-nahr-daw] /ˌli əˈnɑr doʊ,, ˌleɪ-;; Italian ˌlɛ ɔˈnɑr dɔ/ (Show IPA), Leonardo da Vinci.
  • lettre de creance — letter of credit.
  • level compensator — an automatic gain control device used in the receivers of telegraphic circuits.
  • 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
  • lexicographically — the writing, editing, or compiling of dictionaries.
  • liberal democracy — a democracy based on the recognition of individual rights and freedoms, in which decisions from direct or representative processes prevail in many policy areas
  • 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.
  • light machine gun — any air-cooled machine gun having a caliber not greater than 0.30 inches (7.6 mm).
  • ligurian republic — the republic in NW Italy set up by Napoleon in 1797, incorporated into France in 1805, and united with the Kingdom of Sardinia in 1814.
  • line of scrimmage — an imaginary line parallel to the goal lines that passes from one sideline to the other through the point of the football closest to the goal line of each team.
  • linear dependence — (in linear algebra) the property of a set of elements in a vector space in which at least one of the vectors in the set can be written as a linear combination of the others.
  • lipopolysaccaride — a molecule, consisting of lipid and polysaccharide components, that is the main constituent of the cell walls of Gram-negative bacteria
  • lisp machine lisp — (language)   An extension of Maclisp, now called Zetalisp.
  • 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.
  • little black book — an address book, esp. one kept by a man, with the names of women companions considered available for dating
  • 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
  • locked and loaded — [Military slang for an M-16 rifle with magazine inserted and prepared for firing] Said of a removable disk volume properly prepared for use - that is, locked into the drive and with the heads loaded. Ironically, because their heads are "loaded" whenever the power is up, this description is never used of Winchester drives (which are named after a rifle).
  • logical operation — Boolean operation.
  • lose the exchange — to lose a rook in return for a bishop or knight
  • lower paleolithic — See under Paleolithic.
  • luggage insurance — insurance against the loss of luggage while travelling
  • luminous efficacy — the quotient of the luminous flux of a radiation and its corresponding radiant flux
  • 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
  • macdonnell ranges — a mountain system of central Australia, in S central Northern Territory, extending about 160 km (100 miles) east and west of Alice Springs. Highest peak: Mount Zeil, 1531 m (5024 ft)
  • macfarlane burnet — Sir (Frank) Macfarlane [muh k-fahr-luh n] /məkˈfɑr lən/ (Show IPA), 1899–1985, Australian physician: Nobel Prize in Physiology 1960.
  • machado y morales — Gerardo [he-rahr-th aw] /hɛˈrɑr ðɔ/ (Show IPA), 1871–1939, president of Cuba 1925–33.
  • macroevolutionary — Pertaining to, or as a result of macroevolution.
  • macroinvertebrate — (zoology) An invertebrate that is large enough to be seen without the use of a microscope.
  • magellanic clouds — either of two irregular galactic clusters in the southern heavens that are the nearest independent star system to the Milky Way.
  • magnetic constant — the permeability of free space, which has the value 4π × 10–7 henry per metre
  • magnetic meridian — a line on the earth's surface, passing in the direction of the horizontal component of the earth's magnetic field.
  • magnetic monopole — a hypothetical very heavy particle with an isolated magnetic north pole or magnetic south pole.
  • magnetic roasting — roasting of a nonmagnetic ore to render it magnetic so that it can be separated from gangue by means of a magnetic field.
  • magnetic rotation — Faraday effect.
  • magnetizing force — that part of the magnetic induction that is determined at any point in space by the current density and displacement current at that point independently of the magnetic or other physical properties of the surrounding medium. Symbol: H.
  • magnetoelasticity — the phenomenon, consisting of a change in magnetic properties, exhibited by a ferromagnetic material to which stress is applied.
  • magnetoresistance — a change in the electrical resistance of a material upon exposure to a magnetic field.
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