Pronunciation: (bOO'du, bood'u),[key] —n. 1. Also called Butsu, Gautama, Gautama Buddha. (Prince Siddhāttha or Siddhartha) 566?–c480 b.c., Indian religious leader: founder of Buddhism.
2. any of a series of teachers in Buddhism, of whom Gautama was the last, who bring enlightenment and wisdom.
3. (sometimes l.c.)Buddhism.a person who has attained full prajna, or enlightenment; Arhat.