Sentence:  The <WSD>pantechnicon</WSD> was running away. It had perceived the wrath to come and was fleeing. Its guardians had evidently left it imperfectly scotched or braked, and it had got loose. ... [T]he onrush of the <WSD>pantechnicon</WSD> constituted a clear crisis. Lower down the gradient of Brougham Street was more dangerous, and it was within the possibilities that people inhabiting the depths of the street might find themselves pitched out of bed by the sharp corner of a <WSD>pantechnicon</WSD> that was determined to be a <WSD>pantechnicon</WSD>. 
Meaning of the word marked with <WSD> tags:  "Originally" '''pantechnicon van''': a van, especially a large moving or removal van. (from 19th c.)