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Pertaining to, derived from, or containing iron.

(Science: chemistry) Specifically, denoting those compounds in which iron has a higher valence than in the ferrous compounds; as, ferric oxide; ferric acid.

(Science: chemistry) ferric acid, sesquioxide of iron, Fe2O3; hematite. See hematite.

Origin: L. Ferrum iron: cf. F. Ferrique. See ferrous.