One of the mysteries of the English language finally explained.
A narcotic analgesic consisting of a mixture of the hydrochlorides of the opium alkaloids. [A trademark in the United Kingdom.]
Early 20th century; earliest use found in The Trade Marks Journal. From classical Latin omn- (in omnis all: see omni-) + op- + -on, arbitrary ending.
In this article we explore how to impress employers with a spot-on CV.