Feeler
FEE'LER, noun
1. One who feels.
2. One of the palpi of insects. The feelers of insects are usually four or six, and situated near the mouth. They are filiform and resemble articulated, movable antennae. They are distinguished from antennae or horns, by being short, naked and placed near the mouth. They are used in searching for food.
This tern is also applied to the antennae or horns of insects.