any of a family of organic chemical compounds, including chloroform, that form as when water supplies are chlorinated
Origin of trihalomethanetri- + halo- (sense ) + methane
Any of several chemical compounds in which halogen atoms replace three of the hydrogen atoms normally present in a methane molecule. These toxic compounds can occur in chlorinated water as a result of reaction between organic materials in the water and chlorine added as a disinfectant.
(plural trihalomethanes) (Abbreviated as: THM)
tri- +"Ž halomethane