arcus

[医] 弓

发音

US /ˈɑɹkəs/
其它
UK /ˈɑːkəs/

词形变化

arci

释义与例句

n.
  1. 1.

    A white band of cholesterol that forms at the edge of the cornea

    医学
  2. 2.

    A low, horizontal cloud typically forming at the leading edge of thunderstorm outflow

    气象
  3. 3.

    An elastic band around the base of the arolium, a pad at the end of the leg of certain insects

    生物 动物学
  4. 4.

    An arc-shaped band of thickened sexine extending between two apertures on a pollen grain or spore

    生物 化学

词汇关系

名词

同义词 1

arcus senilis

上位词 1

cornea

相关短语

arcus senilis [医] 老人弓, 角膜弓, 老人环 arcus inguinalis

词源

Borrowed from Latin arcus. Doublet of arc and arco. Distantly related to arrow.

来源：wiktionary