Entry 2 senses · 2 variants Webster, 1913 Efferent /ĕf'-ẽr-ənt/ · Ef·fe·rent · IPA /ˈɛ.fɜː.ənt/ a. n. 01 a. Conveying outward, or discharging; -- applied to certain blood vessels, lymphatics, nerves, etc. 1. Conveying outward, or discharging; -- applied to certain blood vessels, lymphatics, nerves, etc.(Physiol.) 02 n. An efferent duct or stream. 1. An efferent duct or stream.