A powerful whistle worked by a jet of steam (usually from a steam-boiler): used as a signal.
| 单词 | θ191799 |
| 释义 | society > communication > indication > signalling > audible signalling > signalling with other sounding instruments > [noun] > sounding of whistle > types of whistle used as signal (5) steam-whistle1840 A powerful whistle worked by a jet of steam (usually from a steam-boiler): used as a signal. air whistle1853 a whistle operated by the force of compressed air; cf. steam-whistle, n. police whistle1872 a type of loud whistle used by the police. bull1884 ? dialect. See quot. 1884. Subcategories:— sounding of steam-whistle (1) |
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