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O

9 ENTRIES FOUND:
  1. O (noun)
  2. O (abbreviation)
  3. O (symbol)
  4. o- (abbreviation)
  5. o- (combining form)
  6. O antigen (noun)
  7. padimate O (noun)
  8. penicillin O (noun)
  9. toluidine blue O (noun)

O

noun \ˈō\

Definition of O

: the one of the four ABO blood groups characterized by the absence of antigens designated by the letters A and B and by the presence of antibodies against these antigens

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