antenna
noun
[ anˈtɛnə ]
• either of a pair of long, thin sensory appendages on the heads of insects, crustaceans, and some other arthropods.
• "bugs use their antennae to detect blood heat"
• a rod, wire, or other device used to transmit or receive radio or television signals; an aerial.
• "a TV antenna"
Origin:
mid 17th century: from Latin, alteration of antemna ‘yard’ (of a ship), used in the plural to translate Greek keraioi ‘horns (of insects)’, used by Aristotle.