Dictionary Definition :
Definition[1]
:
busshin (Japanese). Literally ‘Buddha-mind’, this term can refer either to the (or a) Buddha's compassionate and enlightened mind, or to the originally clear and pure mind inherent in all beings to which they must awaken.
Source
:
A Dictionary of Buddhism, Oxford University Press, 2003, 2004 (which is available in electronic version from answer.com)
Related
:
bussho , busso , bust , bust of Bodhisattva , bustle , busshi , buss , buskin , businesslike , business concerning the kingdom