Noun
A
caustic
,
poisonous
,
white
crystalline
compound
,
C
<
sub
>
6
sub
>
H
<
sub
>
5
sub
>
OH
,
derived
from
benzene
and
used
in
resins
,
plastics
,
and
pharmaceuticals
and
in
dilute
form
as
a
disinfectant
and
antiseptic
;
once
called
carbolic acid