flashing light (in a lighthouse, etc.). flashing signals, signals made with flashes of light. Hence, applied to a direction indicator on a motor…
| 单词 | θ191708 |
| 释义 | society > communication > indication > signalling > visual signalling > luminous signals > [noun] > flashing signal (4) flashing signals1858 flashing light (in a lighthouse, etc.). flashing signals, signals made with flashes of light. Hence, applied to a direction indicator on a motor… flashlight1886 (a) a light so arranged as to give forth sudden flashes, used for signals and in lighthouses; (b) Photography (see quot. 1890); (c) chiefly U.S. =… telephote1893 Any of various devices used for conveying messages over a distance by means of flashes of light. Obsolete. rare. flasher1909 An automatic device for alternately lighting and extinguishing incandescent lamps, as in advertising and warning signs; such a sign or signal itself. |
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