Meanings
nounprotoxide (plural protoxides)
plural protoxides
- chemistryAny of a series of oxides of a particular metal that has the fewest atoms of oxygen per molecule
1 more example
Oxygen frequently combines in various proportions with a substance, rendering it an oxide, but without advancing it to the state of an acid. In order to distinguish each compound thus formed, the language of chemistry is very systematic. The first is called a protoxide; the second a deutoxide; and the third, a paroxide.
1846, unspecified, METALS, OXIDES, EARTHS AND ALKALIES
Origin
- Englishprot-
- Proto-Indo-European*h₂eḱ-der.?
- Ancient Greekὀξύς (oxús)
- Proto-Indo-European*ǵenh₁-
- Proto-Indo-European*ǵénh₁os
- Proto-Hellenic*génos
- Ancient Greekγένος (génos)
- Frenchoxygène
- Proto-Indo-European*h₂eḱ-
- Proto-Indo-European*h₂eḱéh₁yeti
- Proto-Italic*akēō
- Latinaceō
- Proto-Indo-European*dʰeh₁-
- Latinacidu
- Frenchacide
- Frenchoxide
- Englishoxide
- Englishprotoxide
Cite this entry
APA
protoxide. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/protoxide
MLA
“protoxide.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/protoxide. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “protoxide,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/protoxide.
Source: protoxide on Wiktionary, CC BY-SA 4.0.