The Collaborative International Dictionary of English v.0.48:

Certificate \Cer*tif"i*cate\, v. t. [imp. & p. p.
   Certificated; p. pr. & vb. n. Certificating.] [See
   Certify.]
   [1913 Webster]
   1. To verify or vouch for by certificate.
      [1913 Webster]

   2. To furnish with a certificate; as, to certificate the
      captain of a vessel; a certificated teacher.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

certificated \certificated\ adj.
   officially documented; -- of people.

   Syn: credentialed, documented.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

certificated
    adj 1: furnished with or authorized by a certificate:
           "certificated teachers"