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

Example Sentences

The children sat in a semicircle. The houses are built in a semicircle.
Recent Examples on the Web The mourners formed a semicircle around his grave marker, quietly weeping as the Rev. Nathan Pacer of St. Patrick Catholic Church led them in prayer. John Keilman, Chicago Tribune, 27 Aug. 2022 This tool was constructed so that the clamping rim was a wider and flatter shape than the typical semicircle, which doesn’t always work for everyone’s eyes. Alyssa Brascia, Peoplemag, 19 Sep. 2022 Nearby at the city’s Victory Park, six black granite slabs stood in a semicircle engraved with the names of Tuva servicemen lost in past wars, including in the North Caucasus, Korea and Afghanistan. Ann M. Simmons, WSJ, 9 Sep. 2022 The Miami Heat coach was speaking in the locker room after a season-extending win in Boston, players and staff standing around him in a semicircle. Tim Bielik, cleveland, 29 May 2022 The Miami Heat coach was speaking in the locker room after a season-extending win in Boston, players and staff standing around him in a semicircle. Tim Bielik, cleveland, 29 May 2022 The group sat in a semicircle on a long shale plateau. Rebekah Frumkin, Outside Online, 1 Mar. 2019 The Miami Heat coach was speaking in the locker room after a season-extending win in Boston, players and staff standing around him in a semicircle. Tim Bielik, cleveland, 29 May 2022 Plumes of smoke and burning fields where artillery strikes had lit the ground on fire enveloped Lysychansk in a semicircle on Sunday afternoon. New York Times, 12 June 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'semicircle.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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 9 Dec. 2022.

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!


The Great British Vocabulary Quiz

  • union jack speech bubble
  • Named after Sir Robert Peel, what are British police called?
Spell It

Hear a word and type it out. How many can you get right?

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ