Found 2 items, similar to trioxide.
English → English (WordNet) Definition: trioxide trioxide n : an oxide containing three atoms of oxygen in the molecule
English → English (gcide) Definition: Trioxide Trioxide \Tri*ox"ide\, n. [Pref. tri- + oxide.] (Chem.) An oxide containing three atoms of oxygen; as, sulphur trioxide, SO3; -- formerly called tritoxide. [1913 Webster]