potassium bromide

noun

, Chemistry.

1. a white, crystalline, water-soluble powder, KBr, having a bitter saline taste: used chiefly in the manufacture of photographic papers and plates, in engraving, and in medicine as a sedative.

potassium bromide

noun

1. a white crystalline soluble substance with a bitter saline taste used in making photographic papers and plates and in medicine as a sedative. Formula: KBr

Word History and Origins

Origin of potassium bromide¹

First recorded in 1870–75

Example Sentences

Each fluid drachm about equals, in medicinal strength, fifteen grains of potassium bromide.

From Project Gutenberg

The usual method is to condemn vigorously the use of potassium bromide, and substitute ammonium or sodium bromide for it.

From Project Gutenberg

Before using, add one drop of ten per cent solution of potassium bromide to each ounce of the solution.

From Project Gutenberg

For the same reason, contrary to common opinion, I do not advise the addition of potassium bromide to the developer.

From Project Gutenberg

We therefore conclude, that either the niter or the small excess of potassium bromide, or both together, produce the change.

From Project Gutenberg