A vertical line; (occasionally more generally) a straight line at right angles to another.
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| 单词 | θ115708 |
| 释义 | the world > relative properties > number > geometry > line > [noun] > perpendicular (3) plumb line1551 A vertical line; (occasionally more generally) a straight line at right angles to another. normal1728 A perpendicular line; a straight line that is at right angles to another line, a tangent to a curve, or a tangent plane to curved surface. binormal1848 (See quot. 1848.) |
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