The Collaborative International Dictionary of English v.0.48:

Attendant \At*tend"ant\, a. [F. attendant, p. pr. of attendre.
   See Attend, v. t.]
   1. Being present, or in the train; accompanying; in waiting.
      [1913 Webster]

            From the attendant flotilla rang notes triumph.
                                                  --Sir W.
                                                  Scott.
      [1913 Webster]

            Cherub and Seraph . . . attendant on their Lord.
                                                  --Milton.
      [1913 Webster]

   2. Accompanying, connected with, or immediately following, as
      consequential; consequent; as, intemperance with all its
      attendant evils.
      [1913 Webster]

            The natural melancholy attendant upon his situation
            added to the gloom of the owner of the mansion.
                                                  --Sir W.
                                                  Scott.
      [1913 Webster]

   3. (Law) Depending on, or owing duty or service to; as, the
      widow attendant to the heir. --Cowell.
      [1913 Webster]

   Attendant keys (Mus.), the keys or scales most nearly
      related to, or having most in common with, the principal
      key; those, namely, of its fifth above, or dominant, its
      fifth below (fourth above), or subdominant, and its
      relative minor or major.
      [1913 Webster]