释义 |
anad·ro·mous \əˈnadrəməs, aˈn-\ adjective Etymology: Greek anadromos running upward, from anadramein to run upward, from ana- + dramein to run — more at tread 1. of fish : ascending rivers from the sea at certain seasons for breeding < salmon and shad are anadromous > — compare catadromous 2. also an·a·drom·ic \|anə|drämik\ [anadromic from Greek anadromos + English -ic] : having the first set of veins arising on the upper side of the midrib toward the tip — used of the pinnae of a fern frond |