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1 definition by BeliveInThe Legend(Link)

 
1.
PA
In the Megaman Battle Network series it meas

program advance and it is when Lan the main character in most of the Megaman Battle Network series downloads a series of chips to Megaman to create a more powerfull attack.
Lan: Megaman battle chip in download:
*Sword
*Widesword
*Longsword
Megaman creates the PA Lifesword and takes the shit out of the virus.
by BeliveInThe Legend(Link) August 18, 2010