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trioxide

Noun

tri=ox=ide

WORDNET DICTIONARY

trioxide(n = noun.substance) Array - an oxide containing three atoms of oxygen in the molecule; Array

is a kind of oxide

trioxide, n. [Pref. tri- + oxide.].

An oxide containing three atoms of oxygen; as, sulphur trioxide, SO3; -- formerly called tritoxide. [1913 Webster]

trioxide, n. Chem. an oxide containing three oxygen atoms.

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