Dictionary Definition :
Definition[1]
:
The two honored ones (Śākyamuni and Amitābha) as teacher and saviour, with reference to the teaching of the way of salvation of the first, and the consequent saving vows of the second.
Source
:
A Dictionary of Chinese Buddhist Terms, William Edward Soothill and Lewis Hodous
Definition[2]
:
(術語)觀無量壽經正宗分之說相。二尊為釋迦彌陀。二教為要門與弘願。此經之正宗分以釋迦顯說要門方便之定散諸善,彌陀彰弘願真實之實力念佛,故云。
Source
:
丁福保《佛學大辭典》