1. A radioactive transuranic element; discovered by bombarding americium with helium
   - berkelium, Bk

Type of: metal, metallic element

• cusped
• cuspid
• cuspidal
• cuspidate
• cuspidated
• cuspidation
• cuspidor
• cuss
• cussed
• cussedly
• cussedness
• cussword
• custard
• custard apple
• custard apple tree
• custard pie
• custard powder
• custard-apple family
• custard-like
• Custer
• Custer's Last Stand
• custodial
• custodial account
• custodian
• custodianship