percurrent
/pəˈkʌrənt/ /pəˈkʌr(ə)nt/adjective
1 Biology. Of a linear structure (especially the midrib, costa, or median vein of a leaf or frond): extending throughout the entire length.
2 Mycology. Growing through the tip of a conidiophore or conidium; designating the type of proliferation in which such growth occurs.
Origin
Late 16th century (in an earlier sense). From classical Latin percurrent-, percurrēns, present participle of percurrere.