antennule

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antennule

(ăn-tĕn′yo͞ol)
n. Zoology
A small antenna or similar organ, especially one of the first pair of small antennae on the head of a crustacean.

an·ten′nu·lar adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

antennule

the foremost of two pairs of antennae that occur in some crustaceans; most antennae in other arthropods are homologous with the antennules of crustaceans.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005