“catadromous”的英文意思_释义_用法

单词

catadromous

释义

catadromous, a.|kəˈtædrəməs|
[f. Gr. κατάδροµος (f. κατά down + -δροµος running) + -ous. Cf. anadromous.]
1. Zool. Of fishes: Descending periodically from the upper to the lower reaches of the river, or to the sea, in order to spawn; as the Eel.
1883Fisheries Exhib. Catal. (ed. 4) 97 Fresh-water fishes may be..catadromous or such as reside in fresh waters.
2. Bot. (See quot.)
1881J. G. Baker in Nature XXIII. 480 Milde's classification of ferns into a catadromous and anadromous series according as to whether their lowest secondary branches originate on the posterior or anterior side of the pinnæ.

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