n. A hollow cone or conical vessel, usually of tin or other metal, with a tube issuing from its apex, used for conveying fluids into a vessel with a small opening; a filler.n. A passage for a fluid or vapor, as the shaft or channel of a chimney through which smoke ascends; specifically, in steamships and locomotives, an iron chimney for the boiler-furnaces; the smoke-stack.n. Nautical, a metal cylinder fitted on the topgallant- and royalmastheads of men-of-war, on which the eyes of the topgallant- and royal-rigging are fitted.n. In anatomy and biology, an infundibulum: as, the funnel of a cuttlefish.n. In the Rhizocarpæ, a space between the thick outer coats of the macrospore, into which the apical papilla projects.n. In the chambered cephalopods, the extension of the septum about the siphuncle.