Webster's Revised Unabridged Dictionary · 1913

Excurrent

Excurrent , adjective

[Latin excurrens, past participle of excurrere, excursum, to run out; ex out + currere to run. See Current.]

1.
(Botany) Running or flowing out
(Botany) Running or extending out; as, an excurrent midrib, one which projects beyond the apex of a leaf; an excurrent steam or trunk, one which continues to the top.
2.
(Zoology) Characterized by a current which flows outward; as, an excurrent orifice or tube.