catanadromous

1 definition found

catanadromous - Collaborative International Dictionary of English v.0.48 :

  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]