We found 4 dictionaries that define the word H3O:

General (2 matching dictionaries)

1. H3O: Dictionary.com
2. H3o: Wikipedia, the Free Encyclopedia

Medicine (1 matching dictionary)

3. H3o: Medical dictionary

Miscellaneous (1 matching dictionary)

4. H3O: Acronym Finder

▸ Words similar to H3O ▸ Usage examples for H3O ▸ Idioms related to H3O ▸ Wikipedia articles (New!) ▸ Words that often appear near H3O ▸ Rhymes of H3O ▸ Invented words related to H3O