noun
: a branch of civil engineering concerned primarily with the maintenance of environmental conditions (as pure water supply, waste disposal, insect control, nuisance abatement) conducive to public health
noun
: a branch of civil engineering concerned primarily with the maintenance of environmental conditions (as pure water supply, waste disposal, insect control, nuisance abatement) conducive to public health
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012