D defs.my
Entry 3 senses Webster, 1913

Viability

/vī-əb-ĭl'-ət-ē/ · Vi·a·bil·i·ty · IPA /ˌvaɪəˈbɪlɪti/
01 n. The quality or state of being viable.
  1. 1.
    The quality or state of being viable.
  2. 2.
    The capacity of living after birth.(Law)
  3. 3.
    The capacity of living, or being distributed, over wide geographical limits; as, the viability of a species.