Definition of antenna
1
plural antennae
: one of a pair of slender, movable, segmented sensory organs on the head of insects, myriapods, and crustaceans — see insect illustration
2
: a usually metallic device (such as a rod or wire) for radiating or receiving radio waves
a TV antenna
3
antennae plural
: a special sensitivity or receptiveness
… his political antennae proved to be shrewder than ever.— Erich Segal
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Merriam-Webster unabridged
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Time Traveler for antenna
The first known use of antenna was in 1698
See more words from the same year