Sentence:  The peculiar monument called <WSD>"bidental</WSD>" has a decided place in the question of a circular "templum". The <WSD>"bidental</WSD>" was the consecrated burial-place of the thunderbolt of Jove on the spot where the bolt was supposed to have buried itself in the ground. 
Meaning of the word marked with <WSD> tags:  In Ancient (Rome), a place that had been struck by (lightning) and (consecrated) and enclosed.