1. A radioactive transuranic metallic element; discovered by bombarding uranium with helium atoms
   - americium, Am

Type of: metal, metallic element

• flypast
• flysch
• flyspeck
• flyswat
• flyswatter
• flytrap
• flyway
• flyweight
• flywheel
• Fm
• fMRI
• FNMA
• FO
• fo'c'sle
• foal
• foam
• foam at the mouth
• foam rubber
• foamflower
• foaminess
• foaming
• foamy
• fob
• fob off
• fob watch