Noun
A
substance
(
of
molecular
formula
H
<
sub
>
2
sub
>
O
)
found
at
room
temperature
and
pressure
as
a
clear
liquid
;
it
is
present
naturally
as
rain
,
and
found
in
rivers
,
lakes
and
seas
;
its
solid
form
is
ice
and
its
gaseous
form
is
steam
.
Verb
To
pour
water
into
the
soil
surrounding
(
plants
).