sagitta

矢

发音

US /səˈd͡ʒɪt.ə/

词形变化

sagittae sagittas 复数 sagittas sagittae 复数

释义与例句

n.
  1. 1.

    The keystone of an arch.

  2. 2.

    The distance from a point in a curve to the chord; also, the versed sine of an arc; so called from its resemblance to an arrow resting on the bow and string.

    矢

    数学
  3. 3.

    The larger of the two otoliths, or earbones, found in most fishes.

    生物 动物学
  4. 4.

    Any arrowworm, of the genus Sagitta.

    矢虫

词汇关系

名词

上位词 2

arrow worm chaetognath

词源

Borrowing from Latin sagitta (“an arrow, shaft, bolt”).

来源：wiktionary