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3 definitions found
From:
DICT.TW English-Chinese Dictionary 英漢字典
semi·di·am·e·ter
/-daɪˈæmətɚ/
半徑
From:
Webster's Revised Unabridged Dictionary (1913)
Sem·i·di·am·e·ter
n.
Math.
Half
of
a
diameter
;
a
right
line
,
or
the
length
of
a
right
line
,
drawn
from
the
center
of
a
circle
,
a
sphere
,
or
other
curved
figure
,
to
its
circumference
or
periphery
;
a
radius
.
◄
►
From:
WordNet (r) 2.0
semidiameter
n
:
the
apparent
radius
of
a
celestial
body
when
viewed
as
a
disc
from
the
earth
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