1. Having no carpels
   - acarpellous

Antonym: carpellate

• radio frequency
• radio interferometer
• radio link
• radio news
• radio noise
• radio observation
• radio operator
• radio radiation
• radio receiver
• radio reflector
• radio set
• radio signal
• radio source
• radio spectrum
• radio station
• radio telescope
• radio transmitter
• radio wave
• radio-controlled
• radio-controlled aircraft
• radio-frequency spectrum
• radio-gramophone
• radio-opacity
• radio-opaque
• radio-phonograph