(~s)
1.
An insect’s ~s are the two thin stalks on its head with which it touches and senses things around it.
= antenna
N-COUNT: usu pl
2.
If you put out ~s, you make careful, quiet contacts with people in order to get information from them, or to find out what their reaction will be to a suggestion.
When vacancies occur, the office puts out ~s to the universities.
N-PLURAL