An instrument which indicates (without accurately measuring) the degree of humidity of the air.
| 单词 | θ8635 | 
| 释义 | the world > the earth > weather and the atmosphere > weather > study or science of weather > meteorological instruments > 			[noun]		 > hygroscope (9)		 hygroscope1665 An instrument which indicates (without accurately measuring) the degree of humidity of the air. hydroscope1678 An instrument for the detection of moisture in the air; a hygroscope. Obsolete. Subcategories:— 			in form of toy cottage			(4)		 — 			hygrometer			(2)		 — 			instrument recording humidity and temperature			(1)		  | 
	
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