Medical Dictionary

ABO blood group

noun \ˌā-(ˌ)bē-ˈō-\

Medical Definition of ABO BLOOD GROUP

:  one of the four blood groups A, B, AB, or O comprising the ABO system

Browse

How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears