noun plural but singular or plural in construction Date: 1901 the very foundation or source, the basic level of society or of an organization especially as viewed in relation to higher or more centralized positions of power
GRASS ROOTS
Meaning of GRASS ROOTS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012