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2 definitions found
From:
DICT.TW English-Chinese Dictionary 英漢字典
hemi·he·dral
/ˌhɛmɪˈhidrəl/
From:
Webster's Revised Unabridged Dictionary (1913)
Hem·i·he·dral
a.
Crystallog.
Having
half
of
the
similar
parts
of
a
crystals
,
instead
of
all
;
consisting
of
half
the
planes
which
full
symmetry
would
require
,
as
when
a
cube
has
planes
only
on
half
of
its
eight
solid
angles
,
or
one
plane
out
of
a
pair
on
each
of
its
edges
;
or
as
in
the
case
of
a
tetrahedron
,
which
is
hemihedral
to
an
octahedron
,
it
being
contained
under
four
of
the
planes
of
an
octahedron
. --
Hem*i*he*dral*ly
,
adv.
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