• synonyms


[suhb-ok-sahyd, -sid]
noun Chemistry.
  1. the oxide of an element that contains the smallest proportion of oxygen.
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Origin of suboxide

First recorded in 1795–1805; sub- + oxide
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for suboxide

Historical Examples

  • If there is much sugar, the first drop will throw down a yellow precipitate of suboxide of copper, which becomes rapidly red.

    A System of Practical Medicine By American Authors, Vol. II


  • Hence it is easy to calculate the total amount of copper which has been present as suboxide.

  • This specimen is interesting, as showing the early use and knowledge of suboxide of copper as a stain or coloring agent for glass.

  • This color was quite superficial, and the glass itself was opaque and of a vermilion tint, attributed to suboxide of copper.

  • The suboxide of a grayish blue colour, which forms a kind of crust upon a plate of lead long exposed to the air.

British Dictionary definitions for suboxide


  1. an oxide of an element containing less oxygen than the common oxide formed by the elementcarbon suboxide, C 2 O 3
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012