† tritoxide Chem. Obs.
(traɪ-, trɪˈtɒksaɪd)
[f. trito- + oxide.]
The third of the series of oxides of a metal or radical, containing the next higher proportion of oxygen to the deutoxide. (Now expressed by trioxide or other term indicating the actual proportion: cf. protoxide, deutoxide.) Sometimes improperly used to denote a compound containing three proportions of oxygen (= trioxide).
| 1806 G. Adams' Nat. & Exp. Philos. I. App. 538 Minium, the tritoxide of lead. 1812 Sir H. Davy Chem. Philos. 369 The dark brown oxide [of manganese]..must be a tritoxide or an oxide containing three proportions of oxygene. 1850 Daubeny Atom. The. xi. (ed. 2) 371 In certain states of disease, a peculiar compound, called by Mulder the tritoxide of proteine, makes its appearance. |