triatomic /trī-ə-tomˈik/

1. Consisting of three atoms
2. Having three replaceable atoms or groups
3. Trivalent

• rumple
• rumple-bane
• rumple-banes
• rumpled
• rumples
• rumpless
• rumplier
• rumpliest
• rumpling
• rumply
• Rump Parliament
• rump-post
• rump-posts
• rumps
• rump steak
• rump steaks
• rumpti-iddity
• rum punch
• rumpus
• rumpuses
• rumpus room
• rumpus rooms
• rumpy
• rumpy-pumpy
• rum-runner