Zool. [ad. mod.L. *antennula, dim. of ANTENNA.] A little antenna; a tiny organ of the nature of an antenna.

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1845.  Baird, in Proc. Berw. Nat. Club, II. 156. Antennules of two branches of nearly equal size.

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1872.  Nicholson, Palæont., 147. A pair of small jointed feelers … known as the ‘lesser antennæ’ or ‘antennules.’

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