gully
 oxford
 views  updated Jun 11 2018gul·ly  / ˈgəlē/ (also gul·ley) •
n. (pl.  -lies) a water-worn ravine. ∎  a deep artificial channel serving as a gutter or drain.•
v. [tr.] [usu. as  adj.] (gullied) erode gullies into (land) by water action: he began to pick his way over the gullied landscape.
 The Oxford Pocket Dictionary of Current English 
   gully
 oxford
 views  updated Jun 27 2018gully A feature of surface 
erosion that develops from the run-off of a violent torrent that bites deeply into topsoil and soft sediments. Gullies can develop on valley sides as valley-side gullies and also along valley floors as 
arroyos. See also 
rill-wash.
  A Dictionary of Ecology MICHAEL ALLABY
   gully
 oxford
 views  updated May 08 2018gully A feature of rain 
erosion that develops from the run-off of a violent torrent that bites deeply into topsoil and soft sediments. Gullies can develop on valley sides as valley-side gullies, and also along valley floors as 
arroyos. See also 
RILL-WASH.
  A Dictionary of Earth Sciences AILSA ALLABY and MICHAEL ALLABY
   gully
 oxford
 views  updated May 18 2018gully †gullet XVI; channel or ravine worn by water XVII; deep gutter XVIII. — F. 
goulet neck of a bottle, outlet, narrow passage of water; see prec.
  The Concise Oxford Dictionary of English Etymology T. F. HOAD