Feeler has 5 different meanings across 1 category:
Noun
Noun
1
one of a pair of mobile appendages on the head of e.g. insects and crustaceans; typically sensitive to touch and taste
2
a tentative suggestion designed to elicit the reactions of others
"she rejected his advances"
3
sensitivity similar to that of a receptor organ
"he had a special antenna for public relations"
4
slender tactile process on the jaws of a fish
5
Someone or something that feels.
Broader Terms (hypernyms)
Origin
The word comes from Middle English feeler, formed by adding -er to feel. Its original meaning as an animal organ appeared in the 1660s, while the sense of a proposal used to test reactions emerged in 1830.