法殿 (1) A teaching hall; (2) A palace as a metaphor for the correct teaching of the Buddha; "dharma-palace, dharma-hall." 

 The temple, or hall, of the Law, the main hall of a monastery; also the Guanyin hall.

A Dictionary of Chinese Buddhist Terms, William Edward Soothill and Lewis Hodous

(一)即說法堂。指闡舉大法，宣揚宗旨，行一切法式之堂宇。
(二)即正法（佛之教法）。因正法乃賢聖所依止者，故以殿堂比喻正法。北本涅槃經卷十九（大一二‧四八○上）：「法殿欲崩，法幢欲倒。」

佛光電子大辭典

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dharma-prāsāda*

佛教漢梵大辭典

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