The Collaborative International Dictionary of English v.0.48:

Reintroduce \Re*in`tro*duce"\ (r?*?n`tr?*d?s"), v. t.
   To introduce again. -- Re*in`tro*duc"tion (-d?k"sh?n), n.
   [1913 Webster]

WordNet (r) 3.0 (2006):

reintroduction
    n 1: an act of renewed introduction