Definition of preoc:
(n) :
(video games) A special and possibly random event, typically activated by clicking on an object.
(v) :
(video games) To cause a proc to occur.
(n) :
(programming) Abbreviation of procedure. [A particular method for performing a task.]
(n) :
(programming) Abbreviation of processor. [A person or institution who processes things (foods, photos, applications, etc.).]