Dictionary Definition :
Definition[1]
:
The four are the substance and upholders of all things.
Source
:
A Dictionary of Chinese Buddhist Terms, William Edward Soothill and Lewis Hodous
Definition[2]
:
四界攝持===(術語)地水火風四大,攝持一切諸法,故曰四界攝持。大日經疏十一曰:「四界攝持謂地水火風界,雖現此身內外依正,然此是心王。安住同於虛空,虛空常不動而含容一切也。」
Source
:
丁福保《佛學大辭典》