The Collaborative International Dictionary of English v.0.48:

Individuate \In`di*vid"u*ate\, a. [See Individual.]
   Undivided. [Obs.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Individuate \In`di*vid"u*ate\, v. t. [imp. & p. p.
   Individuated; p. pr. & vb. n. Individuating.]
   To distinguish from others of the species; to endow with
   individuality; to divide into individuals; to discriminate.

   Syn: individualize.
        [1913 Webster]

              The soul, as the prime individuating principle,
              and the said reserved portion of matter as an
              essential and radical part of the individuation,
              shall . . . make up and restore the same
              individual person.                  --South.
        [1913 Webster]

              Life is individuated into infinite numbers, that
              have their distinct sense and pleasure. --Dr. H.
                                                  More.
        [1913 Webster]

WordNet (r) 3.0 (2006):

individuate
    v 1: give individual character to
    2: give individual shape or form to; "Language that individuates
       his memories"