Noun
That which is heteronymous; a thing having a different name or designation from some other thing; -- opposed to homonym.
Source: Webster's dictionarythe word `bow' is an example of a heteronym Source: Internet
But Search represents a transition heteronym that Pessoa used while searching to adapt to the Portuguese cultural reality. Source: Internet
In 1915, Pessoa created the heteronym Raphael Baldaya, an astrologist, and planned to write under his name "System of Astrology" and "Introduction to the Study of Occultism". Source: Internet