[1] : The Collaborative International Dictionary of English v.0.48

efferent \ef"ferent\, 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
see also:
afferent 

[2] : The Collaborative International Dictionary of English v.0.48

efferent \ef"ferent\, n.
   an efferent duct or stream.
   1913 webster

[3] : WordNet (r) 2.0

efferent
     adj : of nerves and nerve impulses; conveying information away
           from the cns; "efferent nerves and impulses" syn: motorial
           ant: afferent
see also:
motorial afferent 

Efferent >> E Words
Efferent, definition of term: Efferent
efferent_pag1.html