·adj Ascending rivers from the sea, at certain seasons, for breeding, as the salmon, shad, ·etc.
II. Anadromous ·adj Tending upwards;
— said of terns in which the lowest secondary segments are on the upper side of the branch of the central stem.
A term applied to migratory fishes, which have their stated times of ascending rivers from the sea, ...
The Sailor's Word-Book