1. Of a chemical compound having a ring with four members
   - four-membered

See also: membered

• polyoma virus
• polyose
• polyostotic fibrous dysplasia
• polyp
• polypectomy
• Polypedates
• Polypedatidae
• polypeptide
• polypetalous
• polyphagia
• polyphagous
• polyphagy
• polypharmacy
• polyphase
• Polyphemus
• polyphemus moth
• polyphone
• polyphonic
• polyphonic letter
• polyphonic music
• polyphonic prose
• polyphonically
• polyphonous
• polyphony
• polyphosphate