= speculum, n. 4. Now rare.
| 单词 | θ38751 | 
| 释义 | the world > animals > birds > parts of or bird defined by > 			[noun]		 > wing or wings > marking on (5)		 beauty spot1804 = speculum, n. 4. Now rare. wing-bar1844 (a) a lateral bar in a scuffling-plough; (b) a bar or band of colour on the feathers of a bird's wing, spec. one formed by distinctive coloration… speculum1847 Ornithology. A lustrous mark on the wings of certain birds; = mirror, n. 7c. wing-band1872 = wing-bar n. (b). mirror1903 Any of various objects resembling a mirror in shape, lustre, or reflective quality. Ornithology. A conspicuous patch of white on the wing tips… | 
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