弧 (hú) - arc & curve

弧Tone 2

hú ｜ 8 strokes ｜ radical: 弓

枫惠

弧 · hú

arc;

curve;

bow;

used in geometry and physics to describe curved shapes.

arccurvebow

Usage highlights

arccircular arcelectric arcarc lengtharc weldingarc lamp

Synonyms

  • 弓形— bow shape; segment of a circle
  • 弧形— arc shape; curved form

Antonyms

  • 直— straight (opposite of curved)
  • 线— line (as opposed to arc)

Usage & contexts

Examples

  • The rainbow forms a beautiful arc (弧).
  • This is a circular arc (圆弧).
  • He drew an arc with a compass (用圆规画弧).
  • The electric arc is very bright (电弧很亮).

Collocations

  • arc(弧)
  • circular arc(圆弧)
  • electric arc(电弧)
  • arc length(弧长)
  • arc welding(弧焊)
  • arc lamp(弧光灯)

Idioms

  • Set square and arc(矩矱绳尺)
  • Arc and chord(弧弦)
  • Arc discharge(弧光放电)

Cultural background

FAQ
  • Originally referred to the curved shape of a bow in ancient China.
  • In mathematics, it represents a segment of a curve, especially a circle.
  • Used in various technical fields including geometry, physics, and engineering.

FAQ