group_o
1. [ noun ] (immunology) the blood group whose red cells carry neither the A nor B antigens
Synonyms: O type_O
Examples:

"people with type O blood are universal donors"

Related terms: blood_group
Similar spelling:   group
  group_B
  group_A
  groupie
  grub
  grip
  grow_up
  gruff
  Grube
  Grubb
  Gropp
  Gripp
  grapo