anadromous


anad·ro·mous

adjective \ə-ˈna-drə-məs\

Definition of ANADROMOUS

:  ascending rivers from the sea for breeding <shad are anadromous> — compare catadromous

Origin of ANADROMOUS

Greek anadromos running upward, from anadramein to run upward, from ana- + dramein to run — more at dromedary
First Known Use: circa 1753

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