mercuric oxide

  1. a slightly crystalline, water-soluble, poisonous compound, HgO, occurring as a coarse, orange-red powder (red mercuric oxide )or as a fine, orange-yellow powder(yellow mercuric oxide ): used chiefly as a pigment in paints and as an antiseptic in pharmaceuticals.

Words Nearby mercuric oxide Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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British Dictionary definitions for mercuric oxide

mercuric oxide

  1. a soluble poisonous substance existing in red and yellow powdered forms: used as pigments. Formula: HgO: Systematic name: mercury(II) oxide

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