Definition of: funnel

(fun′əl) noun
1. A wide–mouthed conical vessel, terminating in a tube, for filling close–necked vessels with liquids: also called tunnel.
2. A smoke pipe, chimney, or flue.
3. A smokestack on a steamship.
4. Any funnel–like part or process: the funnel cell in a leaf.
—v.t. & v.i. ·neled or ·nelled, ·nel·ing or ·nel·ling To pass or move through or as through a funnel; focus. [Earlier fonel, ult. <L infundibulum <infundere pour <in- into + fundere pour]