antennaan‧ten‧na /ænˈtɛnə/ noun [countable] 
1
a piece of equipment on a television, car, roof, etc. for receiving or sending radio or television signals2 (plural antennae /-ni/ ) science, biology one of two long thin parts on the head of insects or on some sea animals such as lobsters, that they use to feel things [Origin: 1600–1700 Latin “pole holding up a sail”]
1 a piece of equipment on a television, car, roof, etc. for receiving or sending radio or television signals2 (plural antennae