Adjective
Of
the
colour
of
rhubarb
:
either
brownish-yellow
(
the
colour
of
rhubarb
rhizomes
and
roots
used
for
medicinal
purposes
),
or
pale
red
(
often
the
colour
of
the
leafstalks
of
common
rhubarb
).
Noun
Any
plant
of
the
genus
,
especially
,
having
large
leaves
and
long
green
or
reddish
acidic
leafstalks
that
are
edible
,
in
particular
when
cooked
(
although
the
leaves
are
mildly
poisonous
).
Verb
Of
fighter aircraft
:
to
fire
at
a
target
opportunistically
.