Definition/Meaning of OH

• English - Proper noun: OH (abbreviation) Abbreviation of Ohio : a state of the United States .
• English - Noun: OH (plural OHs) (Internet, abbreviation, initialism) Initialism of other half : a husband, wife, partner, etc. (US, abbreviation, initialism) Initialism of observation helicopter . (Internet, abbreviation, initialism) Initialism of overheard ; a post whose contents were overheard by its author. OH : "We should just burn the whole place down" OH pl (plural only) (abbreviation, initialism, plural,…
• English - Symbol: OH A hydroxyl , or alcohol , functional group . A hydroxide radical, or hydroxyl group.