diadromous

[ dahy-ad-ruh-muh s ]
/ daɪˈæd rə məs /

adjective

Botany. (of a leaf) having a fanlike arrangement of veins.
(of fish) migrating between fresh and salt waters.

Origin of diadromous

First recorded in 1945–50; dia- + -dromous

British Dictionary definitions for diadromous

diadromous
/ (daɪˈædrəməs) /

adjective

botany of or possessing a leaf venation in the shape of a fan
(of some fishes) migrating between fresh and salt water See also anadromous, catadromous