an ellipse.
| 单词 | θ115754 |
| 释义 | the world > relative properties > number > geometry > curve > [noun] > conic section > ellipse (6) egg-form1551 an ellipse. ellipsis1570 = ellipse, n. Now rare. oval1570 A closed, rounded plane figure without concave portions, somewhat elongated in one direction; a curve enclosing this; esp. (in ordinary use) an… ellipse1753 A plane closed curve (in popular language a regular oval), which may be defined in various ways: (a) considered as a conic section; the figure… Subcategories:— half of (2) |
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