(of fish) migrating from salt water to spawn in fresh water, as salmon of the genera Salmo and Oncorhynchus (distinguished from catadromous).
- anadyr range,
Origin of anadromous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for anadromous
They are anadromous fishes of which little more can be said than that a specimen might take a bottom bait once in a way.
The migratory fishes fall into two groups, the anadromous and the catadtomous.Boy Scouts Handbook|Boy Scouts of America
Word Origin for anadromous
C18: from Greek anadromos running upwards, from ana- + dromos a running
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
Online Etymology Dictionary, © 2010 Douglas Harper
Relating to fish, such as salmon or shad, that migrate up rivers from the sea to breed in fresh water.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.