We found 10 dictionaries that define the word type O:

General (8 matching dictionaries)

1. type O: Merriam-Webster
2. type O: Vocabulary.com
3. type o: Dictionary.com
4. Type O: Wikipedia, the Free Encyclopedia
5. Type o: Rhymezone
6. type o: FreeDictionary.org
7. type o: Mnemonic Dictionary
8. type O: TheFreeDictionary.com

Computing (1 matching dictionary)

9. Type-o, type O: Encyclopedia

Slang (1 matching dictionary)

10. Type O: Urban Dictionary

Definitions from WordNet (Type o) ▸ noun:  the blood group whose red cells carry neither the A nor B antigens ("People with type O blood are universal donors") Opposite: non-O, type A, type B, type AB Types: A, B, AB, more... Phrases: Type O Negative, Type O Negative discography, Handley Page Type O, more... ▸ Words similar to type O ▸ Usage examples for type O ▸ Idioms related to type O ▸ Wikipedia articles (New!) ▸ Words that often appear near type O ▸ Rhymes of type O ▸ Invented words related to type O