1. A radioactive metallic element that is similar to tellurium and bismuth; occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor
   - polonium, Po

Type of: metal, metallic element

• Origen
• origin
• original
• original sin
• originalism
• originality
• originally
• originary
• originate
• safari suit
• safe
• safe and sound
• safe harbor
• safe haven
• safe house
• safe period
• safe seat
• safe sex
• safe-conduct
• safe-deposit
• safe-deposit box
• safebreaker
• safecracker
• safeguard
• safehold