A dark blue colour.

Of an Oxford blue colour.

(organic chemistry) An epoxide.

(organic chemistry) The simplest epoxide; used as a sterilizing agent and in the production of ethylene glycol.

(chemistry) the state of an atom having a particular oxidation number

(chemistry) The compound obtained by the reaction of oxygen on iron. Either iron(II) oxide (old term ferrous oxide, chemical formula FeO) or iron(III) oxide (old term ferric oxide, chemical formula Fe₂O₃). Generally known as rust when hydrated.

A metal cylinder holding compressed oxygen.

Alternative letter-case form of Oxford (cloth) / Alternative letter-case form of Oxford (shoe)

(medicine) a pressurized vessel used to administer oxygen at elevated pressure

(inorganic chemistry) A white solid, of empirical formula B₂O₃; it is an inorganic polymer used in making glass and enamel and for synthesizing other boron compounds.