The quality or condition of not transmitting light; lack of transparency or translucency; inability to be seen through; (Physics) the ratio of the…
| 单词 | θ80880 | 
| 释义 | the world > matter > light > transparency or translucence > opacity > 			[noun]		 > degree of (3)		 opacity1890 The quality or condition of not transmitting light; lack of transparency or translucency; inability to be seen through; (Physics) the ratio of the… Subcategories:— 			measurement of			(2)		 | 
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