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

See also: membered

• pigeon
• pigeon berry
• pigeon breast
• pigeon droppings
• pigeon guillemot
• pigeon hawk
• pigeon loft
• pigeon pea
• pigeon toes
• pigeon-breasted
• pigeon-pea plant
• pigeon-toed
• pigeonhole
• pigeonholing
• pigfish
• piggery
• piggish
• piggishly
• piggishness
• piggy
• piggy bank
• piggyback
• piggyback plant
• pigheaded
• pigheadedness