Manganic \Man`gan"ic\, a. [Cf. F. manganique.] (Chem.) Of, pertaining to resembling, or containing, manganese; specif., designating compounds in which manganese has a higher valence as contrasted with manganous compounds. Cf. {Manganous}. {Manganic acid}, an acid, {H2MnO4}, formed from manganese, analogous to sulphuric acid.