Webster's Revised Unabridged Dictionary · 1913

Efferent

Efferent , adjective

[Latin efferens, -entis, present participle of effere to bear out; ex out + ferre to bear.]

(a)
(Physiology) Conveying outward, or discharging; -- applied to certain blood vessels, lymphatics, nerves, etc.
(b)
(Physiology) 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.

Efferent , noun

An efferent duct or stream.