Trioxide

//trʌɪˈɒksʌɪd// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Any oxide containing three oxygen atoms in each molecule.

    "Zeona has a thin atmosphere of sulfur dioxide and trioxide, created by volcanic outgassing. There are traces of water vapor in the atmosphere, but over the last five centuries of observation particle counts have decreased 4%."

  2. 2
    an oxide containing three atoms of oxygen in the molecule wordnet
  3. 3
    Any organic compound of general formula R-OOO-R', derived from trioxidane.

Synonyms

All synonyms
teroxide

Example

More examples

"Zeona has a thin atmosphere of sulfur dioxide and trioxide, created by volcanic outgassing. There are traces of water vapor in the atmosphere, but over the last five centuries of observation particle counts have decreased 4%."

Etymology

From tri- + oxide.

Related phrases

antimony trioxidearsenic trioxideberkelium trioxidebismuth trioxideboron trioxidechromium trioxidecurium trioxidedinitrogen trioxidemolybdenum trioxidesulfur trioxidesulphur trioxidetitanium trioxide

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.