Feeler1. (n.) One who, or that which, feels.
2. (n.) One of the sense organs or certain animals (as insects), which are used in testing objects by touch and in searching for food; an antenna; a palp.
3. (n.) Anything, as a proposal, observation, etc., put forth or thrown out in order to ascertain the views of others; something tentative.
Thesaurus Entries
advance, antenna, approach, asking price, barb, barbel, barbule, barometer, bid, bone of contention, cat whisker, catechism, cross-interrogatory, cross-question, debating point, demand, foretaste, hint, inquiry, interrogation, interrogative, interrogatory, invitation, issue, kiteflying, leader, leading, leading question, moot point, offer, offering, overture, palp, palpus, pilot balloon, point at issue, point in question, preliminary approach, presentation, probe, problem, proffer, query, question, question at issue, question mark, quodlibet, random sample, sample, sensor, sound, sounder, straw vote, submission, suggestion, tactile cell, tactile corpuscle, tactile hair, tactile organ, tactile process, tactor, tentative approach, test, tester, topic, trial balloon, vexed question, vibrissa, weather vane, weathercock