a new word or phrase coined for an old object or concept whose original name has become used for something
a term that has been created to clarify an existing word that has been rendered ambiguous by evolutions in technology or social practice
a term that previously did not need to exist, but is coined because of changes in technology or culture
A retronym is a type of neologism coined for an old object or concept whose original name has come to be used for something else, is no longer unique, or is otherwise inappropriate or misleading. The term was coined by Frank Mankiewicz http://www.bizforward.com/wdc/issues/2001-03/interview/ and popularized by William Safire http://www.startribune.com/stories/389/4224163.html in 1980 in the New York Times. Many of these are created by advances in technology.