type O

Found in Anh - Anh (Wordnet)

Definition Noun : 1. A blood group in the ABO blood type system : This refers to a classification of human blood based on the presence or absence of specific antigens on the surface of red blood cells. Type O blood lacks both the A and B antigens. 2. An individual with this blood group : A person whose blood is classified as type O. Usage Type O is a compound noun used as a specific medical and...