This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Both injective and surjective.

adj. Having a bijective map.

"If you can write a bijective function that is one that matches each member of set A with a member of set B and vice versa that connects one set to the other, they have the same number of elements."

bijectively    bijection   

one-toone    greenway    highest-resolution    select    object-relational