The Collaborative International Dictionary of English v.0.48:

Efferent \Ef"fe*rent\, a. [L. efferens, -entis, p. pr. of effere
   to bear out; ex out + ferre to bear.] (Physiol.)
   (a) Conveying outward, or discharging; -- applied to certain
       blood vessels, lymphatics, nerves, etc.
   (b) Conveyed outward; as, efferent impulses, i. e., such as
       are conveyed by the motor or efferent nerves from the
       central nervous organ outwards; -- opposed to afferent.
       [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Efferent \Ef"fe*rent\, n.
   An efferent duct or stream.
   [1913 Webster]

WordNet (r) 3.0 (2006):

efferent
    adj 1: of nerves and nerve impulses; conveying information away
           from the CNS; "efferent nerves and impulses" [syn:
           efferent, motorial] [ant: afferent]
    n 1: a nerve that conveys impulses toward or to muscles or
         glands [syn: motor nerve, efferent nerve, efferent]