Definition of semicircle

semicirclenoun

hình bán nguyệt

/ˈsemisɜːkl//ˈsemisɜːrkl/

The word "semicircle" originated from two Greek words: "hemi" meaning half, and "kyklos" meaning circle. When these two words are combined, they form "hemi-kyklos," which translates to "half circle" in English. The term "semicircle" was adopted by the English language during the Renaissance, as the study of geometry and mathematics began to flourish. Today, semicircle is commonly used in mathematics, architecture, and engineering to describe a shape that is equal in width to its height and formed by taking half of a whole circle.

namespace

one half of a circle

một nửa vòng tròn

a thing, or a group of people or things, like a semicircle in shape

một vật, hoặc một nhóm người hoặc đồ vật, giống như hình bán nguyệt

Example:
  • a semicircle of chairs

    một chiếc ghế hình bán nguyệt

  • We sat in a semicircle round the fire.

    Chúng tôi ngồi thành hình bán nguyệt quanh đống lửa.