- [noun] one of a pair of mobile appendages on the head of e.g. insects and crustaceans; typically sensitive to touch and taste
- [noun] a tentative suggestion designed to elicit the reactions of others; "she rejected his advances"
Synonyms: overture, advance, approach
- [noun] sensitivity similar to that of a receptor organ; "he had a special antenna for public relations"
- [noun] slender tactile process on the jaws of a fish