The Collaborative International Dictionary of English v.0.48:

Applicant \Ap"pli*cant\, n. [L. applicans, p. pr. of applicare.
   See Apply.]
   One who apples for something; one who makes request; a
   petitioner.
   [1913 Webster]

         The applicant for a cup of water.        --Plumtre.
   [1913 Webster]

         The court require the applicant to appear in person.
                                                  --Z. Swift.
   [1913 Webster]

WordNet (r) 3.0 (2006):

applicant
    n 1: a person who requests or seeks something such as assistance
         or employment or admission [syn: applicant, applier]