Source : Webster's Revised Unabridged Dictionary (1913)

Pal \Pal\, n. [Etymol. uncertain.]
   A mate; a partner; esp., an accomplice or confederate.
   [Slang]

Source : WordNet®

pal
     n : a close friend who accompanies his buddies in their
         activities [syn: {buddy}, {brother}, {chum}, {crony}, {sidekick}]
     [also: {palling}, {palled}]

pal
     v : become friends; act friendly towards [syn: {pal up}, {chum
         up}]
     [also: {palling}, {palled}]

Source : Free On-Line Dictionary of Computing

PAL
     
        1.  {Paradox Application Language}.
     
        2. For the {AVANCE} distributed {persistent} {operating
        system}.
     
        ["PAL Reference Manual", M. Ahlsen et al, SYSLAB WP-125,
        Stockholm 1987].
     
        ["AVANCE: An Object Management System", A. Bjornerstedt et al,
        SIGPLAN Notices 23(11):206-221 (OOPSLA '88) (Nov 1988)].
     
        [What is it?]
     
        3.  An {object-oriented} {Prolog}-like language.
     
        ["Inheritance Hierarchy Mechanism in Prolog", K. Akama, Proc
        Logic Prog '86, LNCS 264, Springer 1986, pp. 12-21].
     
        4.  {PDP Assembly Language}.
     
        5.  {Pedagogic Algorithmic Language}.
     
        6.  {Programmable Array Logic}.
     
        7.  {phase alternating line}.
     
        (2001-04-02)