We found 13 dictionaries that define the word o2:

General (4 matching dictionaries)

1. o2: Longman Dictionary of Contemporary English
2. O2: Dictionary.com
3. O2 (FireHouse album), O2 (Germany), O2 (Ireland), O2 (O-Town album), O2 (Son of Dave album), O2 (UK), O2 (United Kingdom), O2 (brand), O2 (disambiguation), O2, The O2 (Dublin), The O2 (London), The O2: Wikipedia, the Free Encyclopedia
4. o2: FreeDictionary.org

Computing (3 matching dictionaries)

5. O2: Free On-line Dictionary of Computing
6. O2: CCI Computer
7. O2: Encyclopedia

Medicine (2 matching dictionaries)

8. Sleep Terms (No longer online)
9. O2: Medical dictionary

Miscellaneous (2 matching dictionaries)

10. O2-, O2: Acronym Finder
11. AbbreviationZ (No longer online)

Science (1 matching dictionary)

12. Environmental Terminology Discovery Service (No longer online)

Slang (1 matching dictionary)

13. O2: Urban Dictionary

Similar: chloranil, chromophore, superoxide, superoxide anion, ammonia, 02, antigen, bicarbonate, bromine, calcium, more... Opposite: carbon dioxide, CO2 Phrases: o2 toxicity, The O2 Arena, Virgin Media O2, The O2, O2 Czech Republic, more... ▸ Words similar to o2 ▸ Usage examples for o2 ▸ Idioms related to o2 ▸ Wikipedia articles (New!) ▸ Words that often appear near o2 ▸ Rhymes of o2 ▸ Invented words related to o2