aculeus Hear it!

aculeus definition

acu·leus (ə kyo̵̅o̅′lē əs)

noun pl. aculei -·lei′ (-ī′)

  1. Bot. a prickle
  2. Zool. a sting

Etymology: L, dim. of acus, needle: see acerose

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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