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conservation
noun
-
conservation
the
protection
and
careful
use
of
the
natural
world
so
that
it
is
not
damaged
,
wasted
,
or
destroyed
•
Local
volunteers
organised
a
beach
conservation
project
to
remove
plastic
from
the
sand
.
Local
volunteers
organised
a
beach
conservation
project
to
remove
plastic
from
the
sand
.
•
Turning
off
lights
when
you
leave
a
room
is
a
simple
act
of
energy
conservation
.
Turning
off
lights
when
you
leave
a
room
is
a
simple
act
of
energy
conservation
.
Borrowed
from
Latin
conservare
“
to
keep
,
preserve
”,
combining
con-
“
together
”
and
servare
“
to
keep
”.
Used
in
English
since
the
15th
century
with
the
idea
of
guarding
something
from
loss
.
noun
-
conservation
the
careful
preservation
and
repair
of
works
of
art
,
historic
buildings
,
or
other
cultural
objects
to
keep
them
in
good
condition
•
Experts
began
the
delicate
conservation
of
the
ancient
mural
damaged
by
moisture
.
Experts
began
the
delicate
conservation
of
the
ancient
mural
damaged
by
moisture
.
•
The
museum
raised
funds
for
the
conservation
of
medieval
manuscripts
.
The
museum
raised
funds
for
the
conservation
of
medieval
manuscripts
.
Used
in
the
context
of
art
and
buildings
from
the
mid-20th
century
as
museums
adopted
professional
standards
for
preservation
.
noun
-
conservation
the
scientific
principle
that
a
measurable
quantity
,
such
as
energy
or
mass
,
remains
constant
in
a
closed
system
•
In
physics
class
we
proved
the
law
of
conservation
of
momentum
with
colliding
carts
.
In
physics
class
we
proved
the
law
of
conservation
of
momentum
with
colliding
carts
.
•
The
simulation
shows
that
total
energy
stays
the
same
because
of
conservation
.
The
simulation
shows
that
total
energy
stays
the
same
because
of
conservation
.
Applied
to
physics
in
the
19th
century
when
scientists
recognised
that
certain
quantities
do
not
change
during
natural
processes
.