Dictionary Definition :
Definition[1]
:
A degree of samādhi in which Vairocana produced the Bodhisattva Vajrapāla 金剛護菩薩 who protects men like a helmet and surrounds them like mail by his great pity.
Source
:
A Dictionary of Chinese Buddhist Terms, William Edward Soothill and Lewis Hodous
Definition[2]
:
(術語)大日如來生出北方金剛護菩薩之三摩地也。出生義曰:「自一切如來大悲鎧冑門而生金剛護。」
Source
:
丁福保《佛學大辭典》