Word Study
ferruginous
CIDE DICTIONARY
ferruginous, a. [L. ferruginus, ferrugineus, fr. ferrugo, -ginis, iron rust: cf. F. ferrugineux. See Ferrugo.].
- Partaking of iron; containing particles of iron. Boyle. [1913 Webster]
- Resembling iron rust in appearance or color; brownish red, or yellowish red. [1913 Webster]
OXFORD DICTIONARY
ferruginous, adj.
1 of or containing iron-rust, or iron as a chemical constituent.
2 rust-coloured; reddish-brown.
1 of or containing iron-rust, or iron as a chemical constituent.
2 rust-coloured; reddish-brown.
Etymology
L ferrugo -ginis rust f. ferrum iron
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