vt 1  :  to bend or fold back  :  impart a backward curve, bend, or fold to  2  :  to push or lay aside (as tissue or an organ) during surgery in order to gain access to the part to be operated on <the pleura were ed and later closed over the stump>  vi  :  to throw back light or sound  :  return rays, beams, or waves .
 
 
 
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