Anadromous

Pronunciation

• UK IPA: /əˈnad.ɹə.mÉ™s/
• US IPA: /əˈnæd.ɹə.mÉ™s/

Origin

From Ancient Greek ἀνάδρομος, from ἀνά ("up") + δρόμοs ("running").

Full definition of anadromous

Adjective

1. (of a migratory fish) That lives in the sea and breeds in fresh water.Shads and most species of salmon are anadromous.
• 20 April 2014, Richard Conniff, Alewives are anadromous fish: Born in freshwater, they spend their lives in the ocean, returning annually to their birthplaces to spawn.
2. (botany) Of a fern in which the first veins in a frond segment are produced towards the apex of the frond.

Antonyms

• (botany) catadromous