ferrous Meaning, Definition & Usage

  1. adjective of or relating to or containing iron
    ferric.

WordNet

Fer"rous adjective
Etymology
Cf. F. ferreux. See Ferreous.
Definitions
  1. (Chem.) Pertaining to, or derived from, iron; -- especially used of compounds of iron in which the iron has its lower valence; as, ferrous sulphate.

Webster 1913