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lazybones (informal; usu. used with a sing. verb) a person who is lazy.
lazy Susan a revolving tray for food or condiments, usu. placed in the center of a table. [2 definitions]
lb. abbreviation of "pound," or "pounds," a unit of weight equal to sixteen ounces or 453.592 grams in the avoirdupois weight system, and equal to twelve ounces or 373.242 grams in the apothecaries' and troy weight systems.
LBO abbreviation of "leveraged buyout," the takeover of a corporation by a group of investors using borrowed money that is secured by the assets of the corporation being acquired.
lbs. abbreviation of "pounds," a plural form of "pound."
l.c. abbreviation of "lowercase."
LCD abbreviation of "liquid crystal display," a device that employs a film of transparent liquid crystals that become opaque when electrified, so that the pattern of opaque and transparent crystals can form letters or numbers, as in electronic watches, calculators, and the like.
L-dopa a synthetic substance that converts to dopamine in the brain, used in the treatment of Parkinson's disease.
lea an open, usu. grassy piece of land; meadow.
leach to extract (soluble matter) by means of a percolating liquid. [9 definitions]
leachable combined form of leach.
lead1 to conduct or give direction to; guide. [20 definitions]
lead2 a chemical element that has eighty-two protons in each nucleus and that occurs in pure form as a very dense, malleable bluish gray metal used in many applications requiring high density, such as radiation shielding, shot, and weights. (symbol: Pb) [10 definitions]
lead a dog's life to have a life of misery and trouble.
leaden not easily moved; heavy. [4 definitions]
leader one that leads. [4 definitions]
leaderless combined form of leader.
leadership the abilities or qualities, such as confidence, courage, and sound judgement, that make one a leader. [3 definitions]
lead glass a brilliant optical glass containing lead oxide, characterized by high refraction and low dispersion; flint glass; crystal.
lead-in an introductory statement or segment, esp. in a television performance or program. [3 definitions]
leading highest in rank or most important; principal; main. [3 definitions]