Cape Gi·rar·deau 
(jə-rärdō, -rä-)
(jə-rärdō, -rä-) A city of southeast Missouri on the Mississippi River south-southeast of St. Louis, founded in 1793.
- radiopaque
- radiopharmaceutical
- radiophone
- radiophonic
- radiophoto
- radiophotograph
- radiophotography
- radioscopic
- radioscopical
- radioscopy
- radiosensitive
- radiosensitivity
- radiosonde
- radio spectrum
- radiosurgery
- radiotelegraph
- radiotelegraphic
- radiotelegraphy
- radiotelephone
- radiotelephonic
- radiotelephony
- radio telescope
- radiotherapist
- radiotherapy
- radiothermal