In a manner of carrying outward; through efferent pathways or transmission from center to periphery.
Adverbial form of 'efferent,' created with the standard '-ly' suffix. This is a technical term used almost exclusively in medical and scientific writing.
This adverb is almost never actually used—scientists say 'via efferent pathways' or just use 'efferent' as an adjective instead, showing how some grammatically valid words just never find practical use in actual writing.
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