n.
Pronunciation: ' gras- ˌ rüts, - ˌ ru ̇ ts
Variant: also grass · root \ - ˌ rüt, - ˌ ru ̇ t \
Function: adjective
Date: 1907
1 : BASIC , FUNDAMENTAL <the grassroots factor in deciding to buy a house>
2 : being, originating, or operating in or at the grass roots <a grassroots organization> < grassroots political support>
3 : not adapted from or added to an existing facility or operation : totally new <a grassroots refinery>