单词 | syntractrix |
释义 | ‖ syntractrix Geom.|sɪnˈtræktrɪks| [mod.L., f. syn-1 + tractrix.] The locus of a point on the tangent to a tractrix at a constant distance from its intersection with the axis. Also synˈtractory [tractory n. 3].
1820G. Peacock Examples Diff. Calc. i. xxiii. 175 Syntractory. 1852G. Salmon Higher Plane Curves iii. (1879) 289 The syntractrix is the locus of a point Q on the tangent to the tractrix which divides into portions of given length the constant line SN. |

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