Bromide \Bro"mide\, n. A person who is conventional and commonplace in his habits of thought and conversation. [Slang] -- Bro*mid"ic, a. [Slang]
Source: Webster's Revised Unabridged Dictionary (1913)
Bromide \Bromide\, or Bromid paper \Bromid, paper\ (Photog.) A sensitized paper coated with gelatin impregnated with bromide of silver, used in contact printing and in enlarging.
Bromide \Bro"mide\, n. (Chem.) A compound of bromine with a positive radical.