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The lowest or bottom part: the base of a cliff; the base of a lamp.
(noun)
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Biology The part of a plant or animal organ that is nearest to its point of attachment.
(noun)
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Biology The point of attachment of such an organ.
(noun)
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A supporting part or layer; a foundation: a skyscraper built on a base of solid rock.
(noun)
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A basic or underlying element; infrastructure: the nation's industrial base.
(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.