Webster's Revised Unabridged Dictionary · 1913

Ferric

Ferric , adjective

[Latin ferrum iron: compare French ferrique. See Ferrous.]

(Chemistry) Pertaining to, derived from, or containing iron. Specifically (Chemistry), denoting those compounds in which iron has a higher valence than in the ferrous compounds; as, ferric oxide; ferric acid.
Collocations (2)
Ferric acid (Chemistry) , an acid, H2FeO4, which is not known in the free state, but forms definite salts, analogous to the chromates and sulphates.
Ferric oxide (Chemistry) , sesquioxide of iron, Fe2O3; hematite. See Hematite.