A chemical compound containing two halogen atoms or groups.
From 'di-' (two) combined with 'halid,' an older spelling of 'halide,' which comes from 'halogen' (Greek 'hals' for salt and 'gen' for producing).
Dihalides were crucial in early chemistry—once chemists understood how to make them, they could create everything from refrigerants to CFCs, which changed both modern life and the ozone layer.
Complete word intelligence in one call. Free tier — 50 lookups/day.