protoxide

American  

[proh-tok-sahyd, -sid] / proʊˈtɒk saɪd, -sɪd /

Also protoxid

noun

Chemistry.

1. the one of a series of oxides having the smallest proportion of oxygen.

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protoxide British  

/ prəʊˈtɒksaɪd /

noun

1. the oxide of an element that contains the smallest amount of oxygen of any of its oxides

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Etymology

Origin of protoxide

prot- + oxide

Example Sentences

See Examples For:

protoxide

Some soils, however, contain the protoxide of iron in such quantities as to be injurious to plants,—see page 86.

From The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools by George E. (George Edwin) Waring

Thus iron protoxide is now generally known as ferrous oxide, and iron peroxide as ferric oxide.

From Heroes of Science Chemists by M. M. Pattison (Matthew Moncrieff Pattison) Muir

The black scales which fly from hot iron when struck by the blacksmith's hammer are protoxide of iron.

From The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools by George E. (George Edwin) Waring

The aurates were easily produced, but it was impossible to obtain the combination of alkalis and the protoxide of gold.

From The International Monthly, Volume 3, No. 1, April, 1851 by Various

Massicot, mas′i-kot, n. protoxide of lead or yellow oxide of lead.

From Chambers's Twentieth Century Dictionary (part 2 of 4: E-M) by Various