Source : Webster's Revised Unabridged Dictionary (1913)

Blister \Blis"ter\, v. t.
   1. To raise a blister or blisters upon.

            My hands were blistered.              --Franklin.

   2. To give pain to, or to injure, as if by a blister.

            This tyrant, whose sole name blisters our tongue.
                                                  --Shak.

Blister \Blis"ter\, n. [OE.; akin to OD. bluyster, fr. the same
   root as blast, bladder, blow. See {Blow} to eject wind.]
   1. A vesicle of the skin, containing watery matter or serum,
      whether occasioned by a burn or other injury, or by a
      vesicatory; a collection of serous fluid causing a
      bladderlike elevation of the cuticle.

            And painful blisters swelled my tender hands.
                                                  --Grainger.

   2. Any elevation made by the separation of the film or skin,
      as on plants; or by the swelling of the substance at the
      surface, as on steel.

   3. A vesicatory; a plaster of Spanish flies, or other matter,
      applied to raise a blister. --Dunglison.

   {Blister beetle}, a beetle used to raise blisters, esp. the
      {Lytta (or Cantharis) vesicatoria}, called {Cantharis} or
      {Spanish fly} by druggists. See {Cantharis}.

   {Blister fly}, a blister beetle.

   {Blister plaster}, a plaster designed to raise a blister; --
      usually made of Spanish flies.

   {Blister steel}, crude steel formed from wrought iron by
      cementation; -- so called because of its blistered
      surface. Called also {blistered steel}.

   {Blood blister}. See under {Blood}.

Blister \Blis"ter\, v. i. [imp. & p. p. {Blistered}; p. pr. &
   vb. n. {Blistering}.]
   To be affected with a blister or blisters; to have a blister
   form on.

         Let my tongue blister.                   --Shak.

Source : WordNet®

blister
     n : (pathology) an elevation of the skin filled with serous
         fluid [syn: {bulla}, {bleb}]

blister
     v 1: get blistered; "Her feet blistered during the long hike"
          [syn: {vesicate}]
     2: subject to harsh criticism; "The Senator blistered the
        administration in his speech on Friday"; "the professor
        scaled the students"; "your invectives scorched the
        community" [syn: {scald}, {whip}]
     3: cause blisters to from on; "the tight shoes and perspiration
        blistered her feet"