trochoid

n. 次摆线, 车轴关节 a. 车轴状的

发音

US

词形变化

trochoids 复数 trochoids more trochoid 比较级 most trochoid 最高级

释义与例句

n.
  1. 1.

    The curve traced by a point on a circle as it rolls along a straight line

    数学
  2. 2.

    An organism or fossil with a trochoid shell (especially one in the gastropod family Trochidae), or the shell itself.

    生物
adj.
  1. 1.

    Capable of rolling.

  2. 2.

    Allowing rotation.

  3. 3.

    High-spired; conical.

    生物

词源

From Ancient Greek τροχοειδής (trokhoeidḗs), from τροχός (trokhós, “wheel”) + εἶδος (eîdos, “form, image”).

来源：wiktionary