Dictionary.net

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.

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.

Capable of living or maintaining life: used of a newborn infant.

Capable of living.

Able to live or likely to live.

Of a fetus, far enough advanced in development to be capable of survival apart from the maternal organism.[Lat.]