Illustrated Companion to the Latin Dictionary/Colluviarium

This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich. 

COLLUVIA'RIUM. A sort of well or opening formed at certain intervals in the channel of an aqueduct, for the purpose of procuring a free current of air along its course; and also, perhaps, to facilitate the operation of clearing away any foul deposits left by the waters, by affording a ready access to every part of the duct. Vitruv. viii. 8. 6.