What does o- mean?

Definitions for o-

Here are all the possible meanings and translations of the word o-.

Did you actually mean oh or o?


  1. A blood type that has no antigens. It lacks the A, B and Rh factors on the blood cells. It is the universal donor for blood and can give blood to any blood type, but can only receive O- blood.


  1. The numerical value of o- in Chaldean Numerology is: 7

  2. The numerical value of o- in Pythagorean Numerology is: 6

Images & Illustrations of o-