VERB (3)

1. make legally capable or qualify in law;

2. cause (spermatozoa) to undergo the physical changes necessary to fertilize an egg;

3. make capable;
- Example: "This instruction capacitates us to understand the problem"

The Collaborative International Dictionary of English v.0.48:

Capacitate \Ca*pac"i*tate\ (k[.a]*p[a^]s"[i^]*t[=a]t), v. t.
   [imp. & p. p. Capacitated; p. pr. & vb. n. Capacitating.]
   To render capable; to enable; to qualify.
   [1913 Webster]

         By this instruction we may be capaciated to observe
         those errors.                            --Dryden.
   [1913 Webster]

WordNet (r) 3.0 (2006):

capacitate
    v 1: make legally capable or qualify in law
    2: cause (spermatozoa) to undergo the physical changes necessary
       to fertilize an egg
    3: make capable; "This instruction capacitates us to understand
       the problem"