percurrent

per·cur·rent

P0184300 (pər-kûr′ənt)adj. Of or relating to a midrib that extends through the entire length of a leaf.
[Latin percurrēns, percurrent-, present participle of percurrere, to run through : per-, per- + currere, to run; see kers- in Indo-European roots.]

percurrent

(pəˈkʌrənt) adj1. formal pervading; running throughout2. (Biology) biology running or extended throughout the entire length of a given biological structure or organism