Lewis & Short

infundĭbŭlum (infūd-, infīd-), i, n. [infundo], a funnel (cf. infurnibulum).

  1. I. In gen., Col. 3, 18, 6; Cato, R. R. 10, 1; 11, 2; 13, 3; Pall. 7, 7; Vitr. 10, 10, 12 and 13 (infidibula).
  2. II. In partic., the funnel in a mill, through which the grain is poured, the hopper, Vitr. 10, 10.