pluralan·ten·nae\-ˈte-nē\: one of two or four threadlike movable feelers on the head of insects and crustaceans (as lobsters)
pluralan·ten·nas: a metallic device (as a rod or wire) for sending or receiving radio waves
Word History of ANTENNA
In Greece more than two thousand years ago, the philosopher and naturalist Aristotle wrote a description of insects’ feelers. He used the Greek word keraia, which is derived from the word keras, “horn,” as a name for the feelers. The word keraia in Greek also means “sail yard,” the long piece of wood that spreads and supports the sails on a ship. Centuries later, when Aristotle's work was translated into Latin, the Latin word for a sail yard, antenna, was used to translate keraia. English later borrowed the word antenna from Latin.