cissoid

凹边的,蔓叶线的

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词形变化

cissoids 复数

释义与例句

n.
  1. 1.

    Any of a family of curves defined as the locus of a point, P, on a line from a given fixed point and intersecting two given curves, C₁ and C₂, where the distance along the line from C₁ to P remains constant and equal to the distance from P to C₂.

    数学

    The cissoid of a circle and a line is a conchoid

  2. 1.

    A cisgender person.

    贬义

词源

From Ancient Greek κισσός (kissós, “ivy”) + εἶδος (eîdos, “form, image”).

来源：wiktionary