Very small stream (4)
I believe the answer is:
rill
(Other definitions for rill that I've seen before include "Burn" , "Flow of water" , "Small brook" , "Brooklet" , "Little stream" .)
I believe the answer is:
rill
(Other definitions for rill that I've seen before include "Burn" , "Flow of water" , "Small brook" , "Brooklet" , "Little stream" .)