carboxide noun2 •A gas composed of 10% ethylene oxide on a carrier of 90% carbon dioxide, used for sterilization.Closure should be as airtight as possible in order to reduce leakage of carboxide to a minimum. — 1943 •(no longer used) A compound of carbon and oxygen, such as carbonyl, with some element or radical; carboxylic acid or carbon oxide.Carboxide of potassium is a frey or black, loose pulverulent mass. — 1856 formscarboxides
