In mathematics, describing a correspondence or function that is both one-to-one (injective) and onto (surjective); relating to a one-to-one pairing between two sets.
Combines 'bi-' (two) with 'unique' (from Latin 'unicus,' meaning one). This is a modern mathematical term created in the 20th century to describe a specific type of function.
In math class, a biunique mapping is like a perfect dance-partner situation where everyone has exactly one partner and no one is left out—it's also called a 'bijection!'
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