Dictionary Definition :
Definition[1]
:
諸佛已無生死,但為了渡眾生,無生而生,非滅示滅。
Source
:
陳義孝編, 竺摩法師鑑定, 《佛學常見辭彙》
Definition[2]
:
A life that is without birth, an immortal life, a nirmāṇakāya, or transformation appearance of a Buddha in the world.
Source
:
A Dictionary of Chinese Buddhist Terms, William Edward Soothill and Lewis Hodous