noun
: a group of soils having common characteristics usually developed under the influence of environmental factors (as vegetation and climate) active over a considerable geographic range and comprising one or more families of soil
noun
: a group of soils having common characteristics usually developed under the influence of environmental factors (as vegetation and climate) active over a considerable geographic range and comprising one or more families of soil
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012