heater
/ˈhiːtə(r)/noun
1
- a person or thing that heats, in particular a device for warming the air or water加热者, 加热器（尤指空气或水的加热装置）：
a wall-mounted electric heater
装在墙上的电加热器
a gas water heater.
煤气热水器。
1.1
- Electronics a conductor used for indirect heating of the cathode of a thermionic valve【电子】（热离子管）阴极加热导体。
2
- Baseball a fast ball【棒球】快球。
3
- N. Amer. informal, dated a gun〈北美, 非正式, 旧〉枪。