anad·ro·mous /əˈnædrəməs/
(a.)溯河性的
A·nad·ro·mous a.
1. Zool. Ascending rivers from the sea, at certain seasons, for breeding, as the salmon, shad, etc.
2. Bot. Tending upwards; -- said of terns in which the lowest secondary segments are on the upper side of the branch of the central stem.
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anadromous
adj : migrating from the sea to fresh water to spawn [ant: catadromous,
diadromous]