How many letters does the top answer for “of a nerve fiber passing outward from the cerebral cortex” have?

The most common answer is corticifugal (12 letters).

Crossword clue: of a nerve fiber passing outward from the cerebral cortex

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

corticifugal 12 letters wn-def

of a nerve fiber passing outward from the cerebral cortex

corticofugal 12 letters wn-def

of a nerve fiber passing outward from the cerebral cortex