'Catanadromous' definitions:

Definition of 'Catanadromous'

From: GCIDE

Catanadromous \Cat"a*nad`ro*mous\, a. [Gr. kata` down + 'ana` up + dro`mos running, course.] (Zool.) Ascending and descending fresh streams from and to the sea, as the salmon; anadromous. [R.] [1913 Webster]