Source : Webster's Revised Unabridged Dictionary (1913)

Pock \Pock\, n. [OE. pokke, AS. pocc, poc; akin to D. pok, G.
   pocke, and perh. to E. poke a pocket. Cf. {Pox}.] (Med.)
   A pustule raised on the surface of the body in variolous and
   vaccine diseases.

         Of pokkes and of scab every sore.        --Chaucer.

Source : WordNet®

pock
     n : a pustule in an eruptive disease
     v : mark with a scar; "The skin disease scarred his face
         permanently" [syn: {scar}, {mark}, {pit}]