(n.) A feeler; especially, one of the jointed sense organs attached to the mouth organs of insects, arachnids, crustaceans, and annelids; as, the mandibular palpi, maxillary palpi, and labial palpi. The palpi of male spiders serve as sexual organs. Called also palp. See Orthoptera.

aerials barb barbel barbule bedspring type cat whisker directional antenna dish doublet feed-and-reflector unit feeler mast mattress type palp palpus reflector rhombic antenna scanner strike radar scanner tactile cell tactile corpuscle tactile hair tactile organ tactile process tactor tower transmitting antenna vibrissa wave antenna