Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of protoxide is as below...

Oxidulated :: Oxidulated (a.) Existing in the state of a protoxide; -- said of an oxide.

Protosalt :: Protosalt (n.) A salt derived from a protoxide base.

Protoxide :: Protoxide (n.) That one of a series of oxides having the lowest proportion of oxygen. See Proto-, 2 (b)..

Protoxidize :: Protoxidize (v. t.) To combine with oxygen, as any elementary substance, in such proportion as to form a protoxide..

Massicot :: Massicot (n.) Lead protoxide, PbO, obtained as a yellow amorphous powder, the fused and crystalline form of which is called litharge; lead ocher. It is used as a pigment..

Proto- :: Proto- () Denoting the first or lowest of a series, or the one having the smallest amount of the element to the name of which it is prefixed; as protoxide, protochloride, etc..

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