monatomic /mon-ə-tomˈik/ (chem)

1. Consisting of one atom
2. Having one replaceable atom or group
3. Univalent

• hopped
• hopped-up
• hopped-wort
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• hop pillow
• hop pillows
• -hopping
• hopping
• hopping mad
• hoppings
• hopple
• hoppled
• hopples
• hoppling
• hop-pocket
• hop-pockets
• hop-pole
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• hoppus cubic foot
• hoppus feet