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

(inorganic chemistry) Any univalent oxygen cation derived from water, the simplest of which is the hydronium ion (H₃O⁺).

Of or pertaining to Oxford or to the University of Oxford.

A native or inhabitant of Oxford. / A student or graduate of Oxford University.

(organic chemistry, biochemistry) Any salt or ester of the keto acid derived from nonanoic acid, some of which have biochemical functions

Any of a series of fluorescent dyes that have two or more oxazol rings

plural of Oxonian

(organic chemistry) Any ketone derivative of nonenal (in which a methylene group is converted to a carbonyl group) but especially 4-oxononenal formed by oxidation of polyunsaturated fatty acids

plural of oxononanoate

Alternative form of oxanorbornene