One of the mysteries of the English language finally explained.
A type of rubber which has been expanded to a cellular condition by causing it to absorb a neutral gas under pressure during vulcanization, formerly used for making lifebelts, floats, etc.
1920s; earliest use found in The Trade Marks Journal. Origin uncertain; perhaps from on- (apparently an arbitrary element) + azote.
In this article we explore how to impress employers with a spot-on CV.