What does the word feeler mean?

Usage examples for feeler

  1. Her brother waved first one feeler and then the other, and said: Do you think I would be a Spider for the sake of growing legs? – Among the Meadow People by Clara Dillingham Pierson
  2. Granville thought of the one thing, or rather of the one person, likely, and threw out a feeler:- 'Have you heard from Gladys? – A Bride from the Bush by E. W. (Ernest William) Hornung
  3. It possessed neither legs, flippers, nor tentacles; but out from its heaving, shrinking body it would send, now from one spot, now from another, an active arm, or feeler, with which it swam, pulled, or pushed. – "Where Angels Fear to Tread" and Other Stories of the Sea by Morgan Robertson