\Vi"a*ble\, a. [F., from vie life, L. vita. See {Vital}.]
(Law)
Capable of living; born alive and with such form and
development of organs as to be capable of living; -- said of
a newborn, or a prematurely born, infant.
Note: Unless he [an infant] is born viable, he acquires no
      rights, and can not transmit them to his heirs, and is
      considered as if he had never been born. --Bouvier.