dishwasher

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A person who washes dishes, especially one hired to wash dishes in a restaurant.
2. n. A machine for washing dishes.

Century Dictionary and Cyclopedia

1. n. One who washes dishes.
2. n. The pied wagtail, Motacilla lugubris.
3. n. The grinder, or restless flycatcher, Seisura inquieta. See Seisura.
4. n. A machine for cleaning and washing plates, dishes, etc. It consists essentially of a large vessel kept full of boiling water charged with soap-powder. The crockery is placed in a large galvanized wire basket suspended by a chain from a crane and lowered into the water. Power is applied to large revolving paddles or agitators that keep the hot soapy water in violent motion through the basket, completely washing the contents. The soiled water is removed and clean water added as fast as required. The machine has a capacity of many hundreds of dishes an hour. When the dishes are washed the basket is raised out of the water, swung round on the crane and lowered for a moment into clean, hot water. On taking the basket out of the rinsing water the dishes dry quickly from the heat to which they have been subjected.

Wiktionary

1. n. A machine for washing dishes.
2. n. Someone who washes dishes, especially one hired to wash dishes in a restaurant.
3. n. UK, dialect A European bird, the wagtail.

GNU Webster's 1913

1. n. One who, or that which, washes dishes.
2. n. (Zoöl.) A European bird; the wagtail.
3. n. an electrical appliance{4} which washes tableware automatically by directing powerful streams of hot soapy water at the items from multiple jets.

WordNet 3.0

1. n. a machine for washing dishes
2. n. a machine for washing dishes
3. n. someone who washes dishes