‖n.; pl.Annuli [ L. ] 1. A ring; a ringlike part or space. [ 1913 Webster ]
2. (Geom.) (a) A space contained between the circumferences of two circles, one within the other. (b) The solid formed by a circle revolving around a line which is the plane of the circle but does not cut it. [ 1913 Webster ]
3. (Zool.) Ring-shaped structures or markings, found in, or upon, various animals. [ 1913 Webster ]
[wán bì guī zhào, ㄨㄢˊ ㄅㄧˋ ㄍㄨㄟ ㄓㄠˋ, 完璧归赵 / 完璧歸趙] lit. to return the jade annulus to Zhao (成语 saw); fig. to return something intact to its rightful owner #77,680[Add to Longdo]
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