1. Iron-bearing; associated with or containing iron. 2. Of the color of iron rust. [L. ferrugineus, iron rust, rust-colored]
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1) of, relating to, or containing iron
2) resembling iron rust in color
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fer·ru·gi·nous (fə-rooґjĭ-nəs) [L. ferruginosus; ferrugo iron rust] 1. containing iron or iron rust. 2. of the color of iron rust.Medical dictionary. 2011.