1. The blood group whose red cells lack the Rh factor (Rh antigen)
   - Rh-negative blood, Rh negative

Type of: blood group, blood type

• Mt. McKinley
• Mt. Olympus
• Mt. Ranier
• Mt. Rushmore
• Mt. St. Helens
• Mt. Vesuvius
• mu
• mu-meson
• muadhdhin
• Muammar al-Qaddafi
• Muammar el-Qaddafi
• muazzin
• Mubarak
• much
• much as
• muchness
• mucic acid
• mucid
• muciferous
• mucilage
• mucilaginous
• mucin
• mucinoid
• mucinous
• muck