The Collaborative International Dictionary of English v.0.48:

Deific \De*if"ic\, Deifical \De*if"ic*al\, a. [L. deificus; deus
   god + facere to make: cf. F. d['e]ifique.]
   Making divine; producing a likeness to God; god-making. "A
   deifical communion." --Homilies.
   [1913 Webster]

WordNet (r) 3.0 (2006):

deific
    adj 1: characterized by divine or godlike nature