coin-op 
(koinŏp′)
(koinŏp′)n.
Informal
Informal
A commercial establishment equipped with self-service washing machines and dryers that are coin-operated.
adj.
Coin-operated.
- hydrophobicity
- hydrophone
- hydrophyte
- hydrophytic
- hydroplane
- hydroponic
- hydroponically
- hydroponicist
- hydroponics
- hydroponist
- hydropower
- hydroquinol
- hydroquinone
- hydroscope
- hydroscopic
- hydrosol
- hydrosolic
- hydrospace
- hydrosphere
- hydrospheric
- hydrostatic
- hydrostatical
- hydrostatically
- hydrostatic equilibrium
- hydrostatic pressure