antenna
an·ten·na
/ænˈtɛnə/ noun , pl -nae /-ni/ or -nas [ count ]
1 : a thin sensitive organ on the head of an insect, crab, etc., that is used mainly to feel and touch things
— sometimes used figuratively
a Senator with sensitive political antennae [=a Senator who is very aware of political issues and attitudes]
◇ The plural of antenna in this sense is usually antennae.
2 chiefly US : a device (such as a wire or a metal rod) for sending or receiving radio or television signals
a TV antenna [=(chiefly Brit) aerial]
◇ The plural of antenna in this sense is usually antennas.
