armband
noun
ˈɑːmbænd
noun
1
a
band
of
material
that
you
wear
around
your
arm
to
show
that
you
have
an
official
position,
or
as
a
sign
of
MOURNING
臂章，袖标;〔服丧时戴的〕臂纱
2
one
of
two
bands
of
plastic
filled
with
air
that
you
wear
around
your
arms
when
you
are
learning
to
swim
[英] 〔学游泳用的〕充气浮臂，救生臂环
usually plural 一般用复数 | BrE