IPA: /ˈfiːlər/
KK: /ˈfiːlər/
An object or part of an animal that helps it sense its environment, like an antenna or tentacle, or a question or hint used to understand what others think or feel.
The insect used its feelers to explore the surroundings and find food.
Feeler → It is formed from "feel" (from Old English *fēlan*, meaning to perceive or sense) and "-er" (meaning a person who). A feeler is a person who perceives or senses something.
Think of someone who 'perceives' or 'senses' things — that's what a feeler does, and the '-er' just means a person.