crab grass Hear it!

crab grass definition

crab grass

☆ any of several weedy annual grasses (genus Digitaria) which spread rapidly because of their freely rooting stems, becoming a pest in lawns and gardens

Etymology: crab + grass: so named from a fancied resemblance

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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