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parallelogram definition

par·al·lelo·gram (par′ə lel′ə gram′)

noun

a plane figure with four sides, having the opposite sides parallel and equal

Etymology: Fr parallélogramme < L parallelogrammum < Gr parallēlogrammon < parallēlos, parallel + grammē, stroke in writing: see gram

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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