Pronunciation: (an-ten'u), [key]
—pl. -ten•nas for 1, -ten•naePronunciation: (-ten'ē) [key] for 2.
1. a conductor by which electromagnetic waves are sent out or received, consisting commonly of a wire or set of wires; aerial.
2. Zool.one of the jointed, movable, sensory appendages occurring in pairs on the heads of insects and most other arthropods. See diag. under insect.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.