catadromous

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Definition of catadromous

2 senses · 1 part of speech · etymology included

adj

Living in fresh water as an adult, but breeding in the sea.

“Bird migration routes favor marshes and river valleys, as do, more obviously, the movement of anadromous salmon and, the mirror image, catadromous eels, to mention only two of the numerous migrating fish species.”

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adj

Living in fresh water as an adult, but breeding in the sea.

“Bird migration routes favor marshes and river valleys, as do, more obviously, the movement of anadromous salmon and, the mirror image, catadromous eels, to mention only two of the numerous migrating fish species.”
Of a fern in which the first veins in a frond segment are produced towards the base of the frond.

Definitions from Wiktionary, CC BY-SA.

From cata- + -dromous, by analogy with anadromous. Compare catanadromous.

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