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leviathan a Biblical sea monster. [3 definitions]
Levi's trademark for close-fitting trousers usu. of denim or corduroy.
levitate to rise and float, apparently without hindrance from the force of gravity. [2 definitions]
Levite according to the Old Testament, a member of the tribe of Levi.
Levitical of or pertaining to the Levites. [2 definitions]
Leviticus the third book of the Old Testament, which contains laws and instructions for religious worship.
levity a lack of seriousness; light, humorous, or foolish behavior or attitude.
levorotation rotation or turning of the plane of polarization of light to the left.
levorotatory turning to the left. (Cf. dextrorotatory.) [2 definitions]
levulose a simple sugar found in honey and certain fruits; fructose.
levy the collection or conscription of money, property, or troops by a government or other authority. [4 definitions]
lewd characterized by vulgarity or offensively explicit sexual references; bawdy. [2 definitions]
lewis an iron device made of several parts that fit into a dovetailed recess of a heavy stone for the purpose of lifting it.
Lewis and Clark Meriwether Lewis (b.1774--d.1809) and William Clark (b.1770--d.1838), U.S. leaders of an expedition to explore the uncharted American West, from Missouri to Oregon, from 1804 to 1807.
lewisite a highly toxic, odorless compound that causes severe blistering, used in chemical warfare.
lex (Latin) law.
lexical of or concerning a collection of words, esp. those of a particular language, considered apart from their uses in syntactical structures. [2 definitions]
lexicographer one who writes or compiles dictionaries.
lexicography the study and practice of principles of dictionary writing and compiling.
lexicon an inclusive listing such as a dictionary or inventory. [3 definitions]
Leyden jar an early device for accumulating and holding static electricity that consists of a glass jar coated inside and out with tinfoil, with a metal rod connected to the inner foil lining and passing out of the jar through an insulated stopper or lid.