Omnidirectional antenna comprising the part of a radio receiver by means of which radio signals are received(noun)
WordNet. Princeton University. 2010.
Use "radio antenna" in a sentence
"His radio antenna gone, Armstrong could not communicate: “So I had to make a no-radio approach where you go over the field and waggle your wings, and the people in the tower, they’re supposed to see you and realize that you’re making a no-radio approach.”"