selectivity

noun
se·​lec·​tiv·​i·​ty | \sə-ˌlek-ˈtiv-ət-ē, ˌsē- \
plural selectivities

Medical Definition of selectivity 

: the quality, state, or degree of being selective porous materials…fixed in both pore size and selectivity— Elizabeth Wilson

More from Merriam-Webster on selectivity

Nglish: Translation of selectivity for Spanish Speakers

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living or existing for a long time

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