Definition of pentoxide in English:


Syllabification: pent·ox·ide
Pronunciation: /pentˈäksīd


  • An oxide containing five atoms of oxygen in its molecule or empirical formula.
    More example sentences
    • Glass-forming substances are usually silica, boric oxide, phosphorous pentoxide, or feldspars.
    • In one method, naphthalene is oxidized with vanadium pentoxide to give phthalic anhydride.
    • The thin covering is composed of alternating layers of silicon dioxide and tantalum pentoxide.

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Pronunciation: ˈtôrtē
a tortoiseshell cat