ethyl chloride noun Chemistry.
- a flammable gas, C2H5Cl, used as a refrigerant, solvent, and anesthetic.
Also called chloroethane. ethyl chloride in Medicine ethyl chloride n.
- A chemical compound that is a gas at room temperature and a colorless, volatile, flammable or explosive liquid under high pressure. It is used as a local anesthetic, potent inhalation anesthetic, refrigerant, and solvent.