How to spell RADIOIDE correctly?

The correct spelling of "radioide" may be "radioactive" or "radioiodine", depending on the context. If it refers to a substance that emits radiation, the correct word is "radioactive". If it specifically refers to the iodine isotope used in nuclear medicine, the correct spelling is "radioiodine."

• Radioed The pilot radioed to air traffic control for clearance to take off.
• Radioing The pilot was radioing to air traffic control for permission to land.
• Redivide The city council decided to redivide the school districts in order to balance out student populations.

Excatally

• exact
• exacted
• exactingly
• exactly
• exacts
• executable
• exotically
• extol
• inexactly
• oxtail