triangle
noun
ˈtraɪæŋɡəl
noun
1
a
flat
shape
with
three
straight
sides
and
three
angles
三角形
2
something
that
is
shaped
like
a
triangle
三角形物体
a
triangle
of
land
一块三角地
3
a
musical
instrument
made
of
metal
bent
into
the
shape
of
a
triangle.
You
hit
it
with
a
metal
stick
to
make
a
ringing
sound.
三角铁〔一种打击乐器〕
4
a
flat
plastic
object
with
three
sides
that
has
one
angle
of
90˚
and
is
used
for
drawing
angles
[美] 三角板，三角尺;
AmE BrE