applier

from WordNet (r) 3.0 (2006)

applier
    n 1: a person who requests or seeks something such as assistance
         or employment or admission [syn: {applicant}, {applier}]
    2: a device for applying a substance [syn: {applicator},
       {applier}]

from The Collaborative International Dictionary of English v.0.48

Applier \Ap*pli"er\, n.
   He who, or that which, applies.
   [1913 Webster]