Definition of anadromous in English:


Syllabification: a·nad·ro·mous
Pronunciation: /əˈnadrəməs


  • (Of a fish, such as the salmon) migrating up rivers from the sea to spawn. The opposite of catadromous.
    More example sentences
    • Pacific salmon are anadromous (sea-run) fish that migrate from freshwater to the ocean and then back to freshwater to spawn.
    • Unlike lampreys, salmon, and other anadromous fish, which migrate from the ocean to fresh water to breed, eels head in the opposite direction.
    • Chinook Salmon are anadromous, making great migrations out to the deepest parts of the ocean and returning as mature adults to their natal streams.


mid 18th century: from Greek anadromos (from ana- 'up' + dromos 'running') + -ous.

More definitions of anadromous

Definition of anadromous in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day astrogation
Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
(in science fiction) navigation in outer space