Bijective

/baɪˈdʒɛktɪv/ adjective

Describing a function or relationship that is both one-to-one (injective) and onto (surjective), creating a perfect pairing between two sets.

Adjective form derived from bijection, combining bi- (two) with -jective (from Latin iacere, to throw), formalized in 20th-century mathematics.

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