Tetroxide

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    any oxide containing four oxygen atoms in each molecule.

    "In the case of nitric acid, however, the employment of the aræometer introduces far greater errors than when it is used for sulphuric acid, hydrochloric acid, and in most other cases, as the concentrated nitric acids as a rule always contain nitrogen tetroxide in solution, the quantity being seldom less than 1 per cent., but more generally several per cent., which makes its strength when taken with the aræometer seem greater than it actually is."

  2. 2
    an oxide containing four atoms of oxygen in the molecule wordnet

Example

More examples

"In the case of nitric acid, however, the employment of the aræometer introduces far greater errors than when it is used for sulphuric acid, hydrochloric acid, and in most other cases, as the concentrated nitric acids as a rule always contain nitrogen tetroxide in solution, the quantity being seldom less than 1 per cent., but more generally several per cent., which makes its strength when taken with the aræometer seem greater than it actually is."

Etymology

From tetr- + oxide.

Related phrases

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