Lewis Short
infurnĭbŭlum (noun N) : in - furnus
* A funnel for inhaling smoke: is nidor per infurnibulum imbibitur in tussi,Plin. 24, 15, 85, § 135 (Jahn and others read infundibulum; Gloss. Philox. infumibulum καπνοδόχη).
Charlton T. Lewis, Charles Short, A Latin Dictionary