Pronunciation: (an-ten'u),[key] —n., —pl.-ten•nasfor 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.