Geometry. An annulus or other ring-like geometrical figure, as a circle, torus, etc. Obsolete.
| 单词 | θ98906 |
| 释义 | the world > space > shape > curvature > roundness > [noun] > circularity > a circle > a concentric circle > space between concentric circles (1) ring1654 Geometry. An annulus or other ring-like geometrical figure, as a circle, torus, etc. Obsolete. |
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