Source : Webster's Revised Unabridged Dictionary (1913)

Hereinafter \Here`in*aft"er\, adv.
   In the following part of this (writing, document, speech, and
   the like).

Source : WordNet®

hereinafter
     adv : in a subsequent part of this document or statement or matter
           etc.; "the landlord demises unto the tenant the
           premises hereinafter called the demised premises"; "the
           terms specified hereunder" [syn: {hereafter}, {hereunder}]