semicircle

play
noun semi·cir·cle \ˈse-mē-ˌsər-kəl, ˈse-ˌmī-, -mi-\

Definition of semicircle

  1. 1 :  a half of a circle

  2. 2 :  an object or arrangement of objects in the form of a half circle

semicircular

play \ˌse-mē-ˈsər-kyə-lər\ adjective

Examples of semicircle in a sentence

  1. The children sat in a semicircle.

  2. The houses are built in a semicircle.

Origin and Etymology of semicircle

Latin semicirculus, from semi- + circulus circle


First Known Use: 1526

Other Mathematics and Statistics Terms


SEMICIRCLE Defined for English Language Learners

semicircle

play
noun semi·cir·cle \ˈse-mē-ˌsər-kəl, ˈse-ˌmī-, -mi-\

Definition of semicircle for English Language Learners

  • : half of a circle

  • : an arrangement of people or things that forms a semicircle


SEMICIRCLE Defined for Kids

semicircle

play
noun semi·cir·cle \ˈse-mi-ˌsər-kəl\

Definition of semicircle for Students

  1. :  half of a circle


Seen and Heard

What made you want to look up semicircle? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to trick or confuse (someone)

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • alphabet-magnets
  • Which is the correct spelling?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ