What does protoxide mean?

Here's a list of possible definitions for the term protoxide:


  1. protoxide(Noun)

    the oxide of a particular element (that has multiple oxides) having the smallest proportion of oxygen

Webster Dictionary

  1. Protoxide(noun)

    that one of a series of oxides having the lowest proportion of oxygen. See Proto-, 2 (b)

  2. Origin: [Proto- + oxide: cf. F. protoxide.]

Chambers 20th Century Dictionary

  1. Protoxide

    prō-tok′sīd, n. the first oxide—that is, an oxide containing one equivalent of oxygen combined with one equivalent of a base.


  1. Chaldean Numerology

    The numerical value of protoxide in Chaldean Numerology is: 7

  2. Pythagorean Numerology

    The numerical value of protoxide in Pythagorean Numerology is: 9

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