What does bromide mean?
A bromide is, first and foremost, a chemical compound: a salt formed when bromine combines with another element, as in potassium bromide or silver bromide. The word took on a second, figurative life in English because bromide salts were once widely prescribed as sedatives — so effective at dulling agitation that they seemed to dull thought itself. By the early twentieth century, calling someone's remark a bromide meant it was a soothing but empty platitude, the verbal equivalent of a sedative. Today this figurative sense flourishes in political commentary and criticism, where speeches are routinely dismissed as a string of tired bromides about unity or progress. The chemical meaning remains standard in science and medicine, though bromide sedatives themselves have largely fallen out of use. The word thus bridges two worlds: precise laboratory chemistry and wry commentary on lazy language.
A compound of bromine with another element or group, especially one of the salts formerly used medicinally as sedatives.
"Photographic film relies on the light sensitivity of silver bromide."
Standard in chemistry; often modified by the combining metal, e.g., potassium, sodium, silver bromide.
A trite or platitudinous remark, especially one offered as if it were wise or consoling.
"He responded to the crisis with the familiar bromide that time heals all wounds."
Usually plural or qualified by an adjective such as 'tired' or 'familiar'; mildly derogatory.
Regular plural. The figurative sense appears far more often in the plural than the singular.
"The report was full of well-worn bromides about innovation."
Once slipped into tea as a supposed sedative to dampen soldiers' urges, 'bromide' now names the dullest kind of cliché — a remark so flat it could put you to sleep.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of bromide
'Bromide' derives from 'bromine,' the name of the halogen element isolated in the 1820s by the French chemist Antoine-Jérôme Balard, who drew it from the Greek 'brōmos' meaning 'stench' or 'bad odor,' a reference to the element's sharp smell. The suffix '-ide' is the standard chemical ending for binary compounds. The figurative sense arose from the sedative use of bromide salts, which led American writers in the early twentieth century to apply the term to dulling, soporific remarks.
How bromide is actually used
The figurative sense ('a trite remark') is common in political and literary criticism and carries a mildly dismissive, slightly formal connotation. The chemical sense is neutral and technical. The historical medicinal sense is now largely obsolete.
Easily confused with bromide
Bromine is the chemical element itself (a red-brown liquid halogen), whereas a bromide is any compound formed from bromine with another element or group.