Adjective
Of
,
or
relating
to
narcotics
.
Noun
Any
substance
or
drug
that
reduces
pain
,
induces
sleep
and
may
alter
mood
or
behaviour
;
in
some
contexts
,
especially
in
reference
to
the
opiates-and-opioids
class
,
especially
in
reference
to
illegal
drugs
,
and
often
both
.