feeler
n 1: one of a pair of mobile appendages on the head of e.g.
insects and crustaceans; typically sensitive to touch
and taste [syn: {antenna}]
2: a tentative suggestion designed to elicit the reactions of
others; "she rejected his advances" [syn: {overture}, {advance},
{approach}]
3: sensitivity similar to that of a receptor organ; "he had a
special antenna for public relations" [syn: {antenna}]
4: slender tactile process on the jaws of a fish [syn: {barbel}]