noun Date: 1960 a category below the suborder and above the subgroup in the hierarchy of soil classification comprising one or more subgroups based on similarities in horizons or characteristics of moisture or temperature
GREAT GROUP
Meaning of GREAT GROUP in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012