Acyl bromide, also known as bromoacyl group, is a functional group found in organic chemistry. There are several synonyms for the term acyl bromide. One alternative name is bromocarbonyl group, which is commonly used in the literature. Another synonym is bromoformyl group, which describes the presence of a bromine atom attached to a carbonyl group. The term bromoacyl halide can also be used to describe a compound containing the acyl bromide functional group. Finally, bromoformate ester is another term for an acyl bromide-containing compound, where the acyl group is attached to an ester instead of a carbonyl group. These synonyms are often used interchangeably in literature and discussion of organic chemistry.