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† oˈxidulated, ppl. a. Chem. Obs.
Also oxy-.
[f. obs. F. oxydulé, f. oxydule, ‘lowest degree of oxidation, protoxide’, dim. of oxyde; after L. acid-us, acidul-us: cf. acidulated, acidulous.]
Combined with a smaller proportion of oxygen than in another compound; as in oxidulated iron, a former name for the magnetic oxide of iron (Fe3O4) as distinguished from the peroxide (Fe2O3). So † ˈoxidule (oxydul) [a. obs. F. oxydule], an oxide containing a smaller or the smallest proportion of oxygen; † oˈxidulous a. = oxidulated.
1806Edin. Rev. IX. 71 Those portions of the ore which contain the least quantity of oxygen..are consequently denominated *oxydulated. 1852Th. Ross Humboldt's Trav. II. xxiv. 512 Vallies, which contain magnetic sands (granulary oxidulated iron).
1818Henry Elem. Chem. (ed. 8) II. 55 [In the case] of only two oxides..we might have applied the term oxide to the metal fully saturated with oxygen, and of *oxidule to the compound at an inferior stage of oxidizement, as has been done by several of the French chemists.
1814Edin. Rev. XXIII. 68 *Oxidulous iron ore forms a rock. 1869Phillips Vesuv. x. 282 Magnetite, oxydulous Iron, occurs in blocks in Somma. |