Funnel

A funnel is a tube or pipe that is wide at the top and narrow at the bottom, used for guiding liquid or powder into a small opening.

For this reason, stainless steel or glass are useful in transferring Diesel fuel, while plastic funnels are useful in the kitchen.

The term funnel is also applied to other seemingly strange objects like a smoking pipe or a kitchen bin.

For solids, a powder funnel with a wide and short stem is more appropriate as it does not clog easily.

[4] Glass is the material of choice for laboratory applications due to its inertness compared with metals or plastics.