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

See also: membered

• amphimixis
• Amphineura
• Amphioxidae
• amphioxus
• amphipod
• Amphipoda
• Amphiprion
• Amphiprion percula
• amphiprostylar
• amphiprostyle
• amphiprotic
• amphisbaena
• Amphisbaenia
• Amphisbaenidae
• amphistylar
• amphitheater
• amphitheatre
• amphitheatric
• amphitheatrical
• Amphitheatrum Flavium
• amphitropous
• amphitropous ovule
• amphiuma
• Amphiumidae
• amphora