a device that varies the brightness of an electric light; spec. (a) a dial, switch, or control panel (typically wall-mounted) that allows the…
| 单词 | θ202063 |
| 释义 | society > travel > means of travel > a conveyance > vehicle > powered vehicle > parts and equipment of motor vehicles > [noun] > headlight > switch that operates headlight (4) dimmer switch1914 a device that varies the brightness of an electric light; spec. (a) a dial, switch, or control panel (typically wall-mounted) that allows the… dipper1925 As the name of various mechanical devices or instruments; big dipper, see Big Dipper, n. dipper switch1935 = dip-switch n. at dip, n.1 compounds 1. dip-switch1952 a switch that dips the beams of a vehicle's headlights. |
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