- semicircle as a noun:
- 1
semicircle
noun
1 semicircle
A plane figure with the shape of half a circle.
synonym: hemicycle.
Roget 247: circularity, roundness; rotundity etc. 249. circle, circlet, ring, areola, hoop, roundlet†, annulus, annulet†, ... show more
Dutch: halve cirkel
Polish: półokrąg
Moby thesaurus: crescent, crescent moon, fifty percent, fifty-fifty, half, half circle, half-and-half, half-moon, hemicycle, hemisphere, horseshoe, lunula, lunule, mediety, meniscus, moiety, quadrant, scythe, sector, semisphere ... show more.
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