Definition, Meaning & Synonyms

semicircle

Noun
/ˈsɛmɪˌsɜːrkl/
Definition
A semicircle is half of a circle. It is formed by cutting a whole circle along its diameter.
Examples
  • The park has a semicircle of benches around the fountain.
  • In geometry class, we learned how to calculate the area of a semicircle.
  • The stage was set up in a semicircle for the performance.
Meaning
The term ‘semicircle’ refers to the shape that represents half of a full circle, encompassing the curved surface and straight line (the diameter).
Synonyms
  • Half-circle
  • Arc