trioxide

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tri·ox·ide

 (trī-ŏk′sīd′) also tri·ox·id (-ŏk′sĭd)
n.
An oxide containing three oxygen atoms per molecule.

trioxide

(traɪˈɒksaɪd)
n
(Elements & Compounds) any oxide that contains three oxygen atoms per molecule: sulphur trioxide, SO3.

tri•ox•ide

(traɪˈɒk saɪd, -sɪd)

n.
an oxide containing three oxygen atoms, as As2O3.
[1865–70]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.trioxide - an oxide containing three atoms of oxygen in the moleculetrioxide - an oxide containing three atoms of oxygen in the molecule
arsenic, arsenic trioxide, arsenous anhydride, arsenous oxide, ratsbane, white arsenic - a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer
oxide - any compound of oxygen with another element or a radical
Translations
References in periodicals archive ?
Company supplies a full range of antimony trioxides.
In addition, the system is resistant to sulfur trioxides, which can cause the stress cracking that commonly derives from true 98% sulfuric acid.
recently added a sixth grade to its Trutint line of low-tinting antimony trioxides.