semicircle
n . 半圓形
半圓形
semicircle n 1 :
a plane figure with the shape of half a circle [
synonym :
{
semicircle }, {
hemicycle }]
Semicircle \
Sem "
i *
cir `
cle \,
n .
1 .
(
a )
The half of a circle ;
the part of a circle bounded by its diameter and half of its circumference .
(
b )
A semicircumference .
[
1913 Webster ]
2 .
A body in the form of half of a circle ,
or half of a circumference .
[
1913 Webster ]
3 .
An instrument for measuring angles .
[
1913 Webster ]
22 Moby Thesaurus words for "
semicircle ":
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 ,
sextant ,
sickle
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