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pentoxide

Syllabification: pent·ox·ide
Pronunciation: /penˈtäksīd
 
/

Definition of pentoxide in English:

noun

Chemistry
An oxide containing five atoms of oxygen in its molecule or empirical formula.
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.

Definition of pentoxide in:

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Pronunciation: ˌvīˈjesəm(ə)l
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relating to or based on the number twenty