Dictionary.com

semicircle

[ sem-i-sur-kuhl ]
/ 藞s蓻m 瑟藢s蓽r k蓹l /
Save This Word!

Definition of semicircle

noun
Also called sem路i路cir路cum路fer路ence [sem-ee-ser-kuhm-fer-uhns, -fruhns, sem-ahy-]. /藢s蓻m i s蓹r藞k蕦m f蓹r 蓹ns, -fr蓹ns, 藢s蓻m a瑟-/. half of a circle; the arc from one end of a diameter to the other.
anything having or arranged in the form of a half of a circle.
QUIZ
GOOSES. GEESES. I WANT THIS QUIZ ON PLURAL NOUNS!
Test how much you really know about regular and irregular plural nouns with this quiz.
Question 1 of 9
Which of the following nouns has an irregular plural form?

Origin of semicircle

From the Latin word s膿micirculus, dating back to 1520鈥30. See semi-, circle

OTHER WORDS FROM semicircle

sem路i路cir路cu路lar [sem-i-sur-kyuh-ler], /藢s蓻m 瑟藞s蓽r ky蓹 l蓹r/, adjectivesem路i路cir路cu路lar路ly, adverbsem路i路cir路cu路lar路ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, 漏 Random House, Inc. 2022

How to use semicircle in a sentence

British Dictionary definitions for semicircle

semicircle
/ (藞s蓻m瑟藢s蓽藧kl) /

noun
  1. one half of a circle
  2. half the circumference of a circle
anything having the shape or form of half a circle

Derived forms of semicircle

semicircular (藢s蓻m瑟藞s蓽藧kj蕣l蓹), adjectivesemicircularly, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition 漏 William Collins Sons & Co. Ltd. 1979, 1986 漏 HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
FEEDBACK