[kuh-tad-ruh-muh s]


(of fish) migrating from fresh water to spawn in the sea, as eels of the genus Anguilla (distinguished from anadromous).

Origin of catadromous

First recorded in 1880–85; cata- + -dromous Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for catadromous

Historical Examples of catadromous

British Dictionary definitions for catadromous



(of fishes such as the eel) migrating down rivers to the sea in order to breedCompare anadromous

Word Origin for catadromous

C19: from Greek katadromos, from kata- down + dromos, from dremein to run
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012