semicircle

noun

semi·​cir·​cle ˈse-mē-ˌsər-kəl How to pronounce semicircle (audio)
ˈse-ˌmī-,
-mi-
1
: a half of a circle
2
: an object or arrangement of objects in the form of a half circle
semicircular
ˌse-mē-ˈsər-kyə-lər How to pronounce semicircle (audio)
ˌse-ˌmī-
-mi-
adjective

Examples of semicircle in a Sentence

The children sat in a semicircle. The houses are built in a semicircle.
Recent Examples on the Web
These examples are automatically compiled from online sources to illustrate current usage. Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
The two bone-conduction modules are connected by a flexible semicircle that can bend outward to fit your head, but beyond that there aren't any adjustable pieces to the design. Eric Ravenscraft, WIRED, 30 Jan. 2022 Around 100 Latinos, some who were flown from key battleground states like Wisconsin and Arizona, sat in a semicircle in stadium-style seating for the town hall. Rebecca Morin, USA TODAY, 11 Oct. 2024 About 30 children were sitting in a semicircle around a tree, said Alec Egan, the birthday girl’s father. Sandra McDonald, Los Angeles Times, 1 Oct. 2024 One striking photograph, discovered in a family album, shows a group of German soldiers sitting in a semicircle, playing cards in the buff. Lauren Collins, The New Yorker, 14 Sep. 2024 See all Example Sentences for semicircle 

Word History

Etymology

Latin semicirculus, from semi- + circulus circle

First Known Use

1526, in the meaning defined at sense 1

Time Traveler
The first known use of semicircle was in 1526

Dictionary Entries Near semicircle

Cite this Entry

“Semicircle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/semicircle. Accessed 17 Nov. 2024.

Kids Definition

semicircle

noun
semi·​cir·​cle ˈsem-i-ˌsər-kəl How to pronounce semicircle (audio)
1
: half of a circle
2
: an object or arrangement of objects in the form of a half circle
semicircular adjective

More from Merriam-Webster on semicircle

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!