Postal abbreviation for Oxfordshire

(after a qualification) University of Oxford, used especially following post-nominal letters indicating status as a graduate.

plural of oxonate

(chemistry) A salt of oxonic acid.

(organic chemistry) Any organic compound derived from another in which a phosphorus-sulfur bond in the parent has been replaced by a phosphorus-oxygen bond in the derivative.

plural of oxon

(organic chemistry) A complex nitrogenous acid, C₄H₅N₃O₄, not known in the free state, but obtained, in combination with its salts, by a slow oxidation of uric acid, to which it is related.

plural of oxonine

(organic chemistry) The unsaturated nine-membered heterocycle having eight carbon atoms, one oxygen atom and four double bonds

(mineralogy) Containing oxygen.