1. Occurring singly; not one of a pair
   "the azygous muscle of the uvula"
   - azygos

See also: single

• bilobated
• bilobed
• bilocation
• bilocular
• bilocular capsule
• biloculate
• Biloxi
• bilsted
• biltong
• bimanual
• bimbo
• bimester
• bimestrial
• bimetal
• bimetallic
• bleeding
• bleeding heart
• bleeding tooth
• bleeding-edge
• bleep
• bleeper
• blemish
• blemished
• blench
• blend