Definition of "hopper"

One who or that which hops.  examples

A temporary storage bin, filled from the top and emptied from the bottom, often funnel-shaped.  examples

A funnel-shaped section at the top of a drainpipe used to collect water, from above, from one or more smaller drainpipes.  examples

A bin or device that feeds material into a machine.  examples

Various insects

1. A grasshopper or locust, especially:

   1. The immature form of a locust.  quotations  examples

      Quotations

      • I went over and found the mealies and ground covered with large hoppers, about two weeks old.

        1901, J. H. Stansell, “Locust Destruction”, in The Agricultural Journal and Mining Record‎, volume 4, page 21

2. The larva of a cheese fly.  examples

3. A leafhopper.  examples

4. Any of various hesperiid butterflies.  examples

An artificial fishing lure.  examples

(slang) A toilet.  quotations

(music) An escapement lever in a piano.  examples

(obsolete) The game of hopscotch.

A window with hinges at the bottom, opened by tilting vertically.  examples

A hopper car.  examples

(chess) A fairy chess piece which moves only by jumping over another piece.  examples

A person or machine that picks hops.  examples

A Sri Lankan pancake made from a fermented batter of rice flour, coconut milk, and palm toddy or yeast.  quotations  examples