A hollow or concave formation or place, which has been dug out, or has the form of having so been: †(a) a hole, cave, den, burrow (obsolete); †(b)…
| 单词 | θ99241 |
| 释义 | the world > space > shape > curvature > curved surface > [noun] > concavity > a concave surface (4) hollowc897 A hollow or concave formation or place, which has been dug out, or has the form of having so been: †(a) a hole, cave, den, burrow (obsolete); †(b)… concavity1483 A concave surface or side, a hollow vault; each of the hollow ‘spheres’ of ancient astronomy. concave1554 A concave surface, or the structure presenting it; a vault, arch, hemisphere, etc., as viewed from the centre; often applied to the vault of the sky. belly1607 A concave or hollow surface; a concavity formed in a surface, e.g. of a sail. |
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