trioxide(redirected from trioxides)
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tri·ox·ide(trī-ŏk′sīd′) also tri·ox·id (-ŏk′sĭd)
An oxide containing three oxygen atoms per molecule.
(Elements & Compounds) any oxide that contains three oxygen atoms per molecule: sulphur trioxide, SO3.
tri•ox•ide(traɪˈɒk saɪd, -sɪd)
an oxide containing three oxygen atoms, as As2O3.
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|Noun||1.||trioxide - 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