from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Migrating up rivers from the sea to breed in fresh water. Used of fish.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. That lives in the sea and breeds in fresh water.
- adj. Of a fern in which the first veins in a frond segment are produced towards the apex of the frond.
from the GNU version of the Collaborative International Dictionary of English
- adj. Ascending rivers from the sea, at certain seasons, for breeding, as the salmon, shad, etc.
- adj. Tending upwards; -- said of terns in which the lowest secondary segments are on the upper side of the branch of the central stem.
from The Century Dictionary and Cyclopedia
- In botany, to ferns whose lowest secondary branches originate on the anterior side of the pinuæ.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. migrating from the sea to fresh water to spawn
From Greek anadromos, running up : ana-, ana- + dromos, a running.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek ἀνάδρομος, from ἀνά ("up") + δρόμοs ("running"). (Wiktionary)