octant

n. 八分圆, 八分仪, (天体与另一天体)成45度的视角位置 [医] 八分体

发音

US

词形变化

octants 复数 octants

释义与例句

n.
  1. 1.

    The eighth part of a circle; an arc of 45 degrees.

  2. 2.

    The aspect of two planets that are 45°, or one-eighth of a circle, apart.

    宗教 哲学
  3. 3.

    The eighth part of a disc; a sector of 45 degrees; half a quadrant.

    数学
  4. 4.

    An instrument for measuring angles, particularly of elevation.

    航海 交通

词汇关系

名词

上位词 1

measuring device

部分词 1

limb

词源

From Latin octāns. Doublet of Octans.

来源：wiktionary