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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]
leading edge the front edge of an airfoil, propeller blade, or sail that faces the wind or direction of motion. [2 definitions]
leading light an influential or guiding member, as of a community, club, or the like.
leading question a question worded in such a way as to suggest the correct or desired answer.
lead line a line with a lead weight attached to it that is lowered into water to measure its depth.