Dictionary Definition :
Definition[1]
:
At one and the same time, like printing (which is synchronous, not like writing which is word by word).
Source
:
A Dictionary of Chinese Buddhist Terms, William Edward Soothill and Lewis Hodous
Definition[2]
:
===(譬喻)一枚之文,有次第前後,而印之於紙時,則現於同時,譬有次第前後之物,現於同時而用之。五教章上曰:「依此普法,一切佛法,並於第二七日,一時前後說。前後一時說,如世間印法,讀文則句義前後,印文則同時顯現。同時前後,理不相違。」
Source
:
丁福保《佛學大辭典》