What is laundromat ? laundromat Meaning? what is Self Service Laundry?

A self-benefit clothing, coin clothing or coin wash is an office where garments are washed and dried. They are referred to in the United Kingdom as launderettes or laundrettes, and in the United States, Canada, Australia and New Zealand as laundromats (from the genericized trademark of the Westinghouse Electric Corporation) or washaterias. George Edward Pendray made "laundromat" for Westinghouse.