Alternative spelling of dihydrogen monoxide

plural of monocular O

plural of double monocular O

(orthography) The Cyrillic letter Ꙭ (capital) or ꙭ (lowercase).

(orthography) The Cyrillic letter Ꙩ (capital) or ꙩ (lowercase).

(inorganic chemistry) The chemical compound Cl₂O which, at room temperature, exists as a brownish-yellow gas soluble in both water and organic solvents.

(economics) A type of market structure that shares both characteristics of perfect competition and that of monopoly depending on the time frame (long-run or short-run).