blood grouping
noun
The determination of the blood group of a person, animal, or sample of blood.
Origin
Early 20th century.
- back station
- backstay
- backstitch
- backstop
- backstory
- back straight
- backstreet
- backstretch
- backstroke
- backstroker
- backswept
- backswimmer
- backswing
- backsword
- back talk
- backtalking
- back the wrong horse
- back-to-back
- back to front
- back-to-nature
- back to (or at) square one
- back-to-school
- back to the drawing board
- backtrack
- back-translation