On gaining more open ground, the country gradually rose before us, and a ferruginous conglomerate cropped out in places.
On the under side the fore wings are fulvous, tipped with ferruginous.
The hind wing is deeply mottled with ferruginous, on which the lighter white markings stand forth very conspicuously.
The hind wings on this side are ferruginous, mottled with purple.
The boulders were all weathered a bright red and were much pitted where ferruginous minerals were leached out.
There was also in the garden a mineral spring of a ferruginous quality.
There are sandstones, shales, and grits, with ferruginous joints.
Ferrugineous, or ferruginous, resembling iron-rust; red-grayish.
There exist in the park at Passy three ferruginous springs, the waters of which were famous even in the seventeenth century.
Everywhere was the same blackened, cooling, ferruginous slag.
ferruginous fer·ru·gi·nous (fə-rōō'jə-nəs, fě-)
Associated with or containing iron.
Having the color of iron rust; reddish-brown.