silver bromide

English Thesaurus

1. a bromide that darkens when exposed to light; used in making photographic emulsions (noun.substance)

hypernym	:	bromide,
definition	:	any of the salts of hydrobromic acid; formerly used as a sedative but now generally replaced by safer drugs (noun.substance)

substance meronym	:	emulsion, photographic emulsion,
definition	:	a light-sensitive coating on paper or film; consists of fine grains of silver bromide suspended in a gelatin (noun.artifact)