[ broh-mahyd or, for 1, broh-mid ]
See synonyms for bromide on
  1. Chemistry.

    • a salt of hydrobromic acid consisting of two elements, one of which is bromine, as sodium bromide, NaBr.

    • a compound containing bromine, as methyl bromide.

  2. Pharmacology. potassium bromide, known to produce central nervous system depression, formerly used as a sedative.

  1. a platitude or trite saying.

  2. a person who is platitudinous and boring.

Origin of bromide

First recorded in 1830–40; brom- + -ide; in defs. 3, 4 from use of some bromides as sedatives

Other words from bromide

  • sub·bro·mide, noun

Words Nearby bromide Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use bromide in a sentence

British Dictionary definitions for bromide


/ (ˈbrəʊmaɪd) /

  1. any salt of hydrobromic acid, containing the monovalent ion Br (bromide ion)

  2. any compound containing a bromine atom, such as methyl bromide

  1. a dose of sodium or potassium bromide given as a sedative

    • a trite saying; platitude

    • a dull or boring person

Origin of bromide

C19, C20 (cliché): from brom (ine) + -ide

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for bromide


[ brōmīd′ ]

  1. A compound, such as potassium bromide, containing bromine and another element or radical.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.