Antenna
noun
The angle of the touch is important with an antenna. Think about antennae. An ant's antennae wiggle around and move in different angles, touching things, to understand the world around them. Imagine their tiny bug antennae touching your arm to figure out who you are.
Note that 触角 refers to the antennae of insects, crustaceans, and certain other arthropods, rather than to TV or radio antennas.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well. しょく goes to しょっ.
アリの触角も美しいが、ちょうちょうの触角の方が一層美しい。
Ants antennae are beautiful, but butterfly antennae are even more beautiful.
虫の触角は触覚だけでなく、臭覚の機能も備えている。
The antennae of insects serve not only as touch sensors but also possess olfactory functions.
蝸牛の触角の先端に目があるなんて知りませんでした！
I didn’t know snail’s eyes are on the tips of their antennae!