antenna Meaning, Definition & Usage

  1. noun an electrical device that sends or receives radio or television signals
    aerial; transmitting aerial.
  2. noun sensitivity similar to that of a receptor organ
    feeler.
    • he had a special antenna for public relations
  3. noun one of a pair of mobile appendages on the head of e.g. insects and crustaceans; typically sensitive to touch and taste
    feeler.

WordNet

An*ten"na noun
Etymology
L. antenna sail-yard; NL., a feeler, horn of an insect.
Wordforms
plural Antennæ
Definitions
  1. (Zoöl.) A movable, articulated organ of sensation, attached to the heads of insects and Crustacea. There are two in the former, and usually four in the latter. They are used as organs of touch, and in some species of Crustacea the cavity of the ear is situated near the basal joint. In insects, they are popularly called horns, and also feelers. The term in also applied to similar organs on the heads of other arthropods and of annelids.

Webster 1913