suboxide

[ suhb-ok-sahyd, -sid ]
/ sʌbˈɒk saɪd, -sɪd /

noun Chemistry.

the oxide of an element that contains the smallest proportion of oxygen.

Origin of suboxide

First recorded in 1795–1805; sub- + oxide
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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British Dictionary definitions for suboxide

suboxide
/ (sʌbˈɒksaɪd) /

noun

an oxide of an element containing less oxygen than the common oxide formed by the elementcarbon suboxide, C 2 O 3
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