n :  a hollow or indentation esp. in a surface of an organism: as  a  :  a natural hollow in the surface of the body  b  :  one of the indented scars left in the skin by a pustular disease  :  POCKMARK  c  :  a usu. developmental imperfection in the enamel of a tooth that takes the form of a small pointed depression
vb, pit*ted  pit*ting vt  :  to make pits in : esp  :  to scar or mark with pits <a face pitted by acne>  vi  :  to become marked with pits : esp  :  to preserve for a time an indentation made by pressure <a swollen area on the gingiva which s readily -A. B. Wade>  .
 
 
 
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