"efferent" in the noun sense
1. motor nerve, efferent nerve, efferent
a nerve that conveys impulses toward or to muscles or glands
"efferent" in the adjective sense
1. efferent, motorial
of nerves and nerve impulses conveying information away from the CNS
"efferent nerves and impulses"
Source: WordNet® (An amazing lexical database of English)
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