Source : Webster's Revised Unabridged Dictionary (1913)

Pat \Pat\, v. t. [imp. & p. p. {Patted}; p. pr. & vb. n.
   {Patting}.] [Cf. G. patschen, Prov. G. patzen, to strike,
   tap.]
   To strike gently with the fingers or hand; to stroke lightly;
   to tap; as, to pat a dog.

         Gay pats my shoulder, and you vanish quite. --Pope.

Pat \Pat\, n.
   1. A light, quik blow or stroke with the fingers or hand; a
      tap.

   2. A small mass, as of butter, shaped by pats.

            It looked like a tessellated work of pats of butter.
                                                  --Dickens.

Pat \Pat\, a. [Cf. pat a light blow, D. te pas convenient, pat,
   where pas is fr. F. passer to pass.]
   Exactly suitable; fit; convenient; timely. ``Pat allusion.''
   --Barrow.

Pat \Pat\, adv.
   In a pat manner.

         I foresaw then 't would come in pat hereafter.
                                                  --Sterne.

Source : WordNet®

pat
     adj 1: having only superficial plausibility; "glib promises"; "a
            slick commercial" [syn: {glib}, {slick}]
     2: exactly suited to the occasion; "a pat reply"
     [also: {patting}, {patted}]

pat
     n 1: the sound made by a gentle blow [syn: {rap}, {tap}]
     2: a light touch or stroke [syn: {tap}, {dab}]
     [also: {patting}, {patted}]

pat
     adv : completely or perfectly; "he has the lesson pat"; "had the
           system down pat"
     [also: {patting}, {patted}]

pat
     v 1: pat or squeeze fondly or playfully, especially under the
          chin [syn: {chuck}]
     2: hit lightly; "pat him on the shoulder" [syn: {dab}]
     [also: {patting}, {patted}]

Source : Free On-Line Dictionary of Computing

PAT
     
        1.  {Personalized Array Translator}.
     
        2.  {Port Address Translation}.
     
        (1998-05-09)