Antennae are the pair of feelers on an insect's head. Waving antennae, long antennae, clean its antennae.
They smell, taste and feel at once, and a moth's can detect a single molecule of scent from a mile away. The plural is antennae for the feelers and antennas for aerials, which is a neat split English has settled into. Note that the Latin antenna meant a ship's yard-arm.
1nounantennaeThe pair of feelers on an insect's head.
“The butterfly slowly moved its antennae as it rested on the flower.”
antennae is sense organs.