What rhymes with o-?
This page is about the various possible words that rhymes or sounds like o-. Use it for writing poetry, composing lyrics for your song or coming up with rap verses.
- (Noun) 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.
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