1. A major river of western Siberia; flows generally northward and westward to the Gulf of Ob and the Kara Sea
   - Ob River

1. The branch of medicine dealing with childbirth and care of the mother
   - obstetrics, tocology, midwifery

Derived forms: Obs

Type of: medical specialty, medicine, river

Part of: Siberia

Encyclopedia: OB

• centrefielder
• centrefold
• centreing
• centreline
• centrepiece
• centrex
• centric
• centrical
• centricity
• centrifugal
• centrifugal force
• centrifugal pump
• centrifugate
• centrifugation
• centrifuge
• centring
• centriole
• centripetal
• centripetal acceleration
• centripetal force
• Centriscidae
• centrism
• centrist
• Centrocercus
• Centrocercus urophasianus