A binary chemical compound of a halogen with another element, especially a metal or nonmetal.
From 'halo-' (halogen) + '-id' or '-ide' (suffix for binary compounds). An older term from 19th-century chemistry, now largely replaced by 'halide.'
The term 'haloid' is old-fashioned chemistry—chemists now say 'halide' instead—but it shows how scientific terminology evolves as fields develop more precise language and as older words gradually fall out of use.
Complete word intelligence in one call. Free tier — 50 lookups/day.