a chemical compound that contains two bromine atoms per molecule
dibromide in American English
(daiˈbroumaid, -mɪd)
noun
Chemistry
a compound containing two bromine atoms, as ethylene dibromide, C2H4Br2
Word origin
[1865–70; di-1 + bromide]This word is first recorded in the period 1865–70. Other words that entered Englishat around the same time include: batting average, dunk, figure skating, goulash, steamrollerdi- is a prefix occurring in loanwords from Greek, where it meant “two,” “twice,” “double”(diphthong). On this model, di- is freely used in the formation of compound words (dicotyledon; dipolar) and in chemical terms (diatomic; disulfide)