Word Study
Ferrous
CIDE DICTIONARY
Ferrous, a. [Cf. F. ferreux. See Ferreous.].
Pertaining to, or derived from, iron; -- especially used of compounds of iron in which the iron has its lower valence of two; as, ferrous sulphate. [1913 Webster]
OXFORD DICTIONARY
Ferrous, adj.
1 containing iron (ferrous and non-ferrous metals).
2 Chem. containing iron in a divalent form (cf. FERRIC).
1 containing iron (ferrous and non-ferrous metals).
2 Chem. containing iron in a divalent form (cf. FERRIC).
Etymology
L ferrum iron
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