Illustrated Companion to the Latin Dictionary/Pnigeus

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. 

PNI'GEUS (πνιγεύς). A damper made in the shape of an inverted funnel, and intended to stop or suppress the rising air in a water organ. Vitruv. x. 8. 2.