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carbon
noun
-
carbon
a
non-metal
chemical
element
(
symbol
C
)
that
appears
in
forms
such
as
diamond
and
graphite
and
is
present
in
all
living
things
•
Diamonds
are
made
entirely
of
carbon
.
Diamonds
are
made
entirely
of
carbon
.
•
Plants
take
in
carbon
from
the
air
during
photosynthesis
.
Plants
take
in
carbon
from
the
air
during
photosynthesis
.
From
Latin
carbo
“
coal
,
glowing
ember
,”
later
used
in
scientific
Latin
to
name
the
element
.
noun
a
duplicate
copy
of
a
document
made
with
carbon
paper
•
The
accountant
asked
for
a
carbon
of
each
invoice
.
The
accountant
asked
for
a
carbon
of
each
invoice
.
•
Can
you
hand
me
the
carbon
so
I
can
file
it
?
Can
you
hand
me
the
carbon
so
I
can
file
it
?
Short
for
“
carbon
copy
,”
from
the
carbon
paper
placed
between
sheets
when
typing
to
create
duplicates
.
noun
-
carbon
the
carbon
dioxide
released
by
human
activities
,
especially
discussed
when
talking
about
climate
change
•
We
are
trying
to
cut
our
carbon
by
cycling
to
work
.
We
are
trying
to
cut
our
carbon
by
cycling
to
work
.
•
The
company's
new
policy
aims
to
be
carbon
neutral
by
2030
.
The
company's
new
policy
aims
to
be
carbon
neutral
by
2030
.
Extension
of
the
chemical
term
,
using
“
carbon
”
to
stand
for
the
carbon
dioxide
gas
produced
by
burning
fossil
fuels
.
carbonate
verb
-
carbonate
,
carbonating
,
carbonates
,
carbonated
to
add
carbon
dioxide
gas
to
a
liquid
so
that
it
becomes
fizzy
•
They
carbonate
the
lemonade
just
before
bottling
it
.
They
carbonate
the
lemonade
just
before
bottling
it
.
•
Some
home
brewers
carbonate
their
beer
naturally
in
the
bottle
.
Some
home
brewers
carbonate
their
beer
naturally
in
the
bottle
.
Derived
from
the
noun
carbonate
,
meaning
to
treat
something
so
that
it
becomes
a
carbonate
.
noun
a
chemical
compound
that
is
a
salt
or
ester
of
carbonic
acid
and
contains
the
ion
CO₃²⁻
•
The
laboratory
technician
measured
the
amount
of
carbonate
in
the
water
sample
.
The
laboratory
technician
measured
the
amount
of
carbonate
in
the
water
sample
.
•
Chalk
is
mostly
made
of
calcium
carbonate
.
Chalk
is
mostly
made
of
calcium
carbonate
.
From
French
carbonate
,
from
carbonique
(“
carbonic
”)
+
-ate
.
hydrocarbon
noun
A
compound
containing
only
hydrogen
and
carbon
atoms
,
such
as
those
found
in
petrol
,
natural
gas
,
and
many
plastics
.
•
Methane
is
the
simplest
hydrocarbon
.
Methane
is
the
simplest
hydrocarbon
.
•
Petrol
consists
mostly
of
hydrocarbons
.
Petrol
consists
mostly
of
hydrocarbons
.
From
French
'hydrocarbure'
(
1830s
),
blend
of
'hydro-'
(
from
Greek
'hudōr'
meaning
water
)
+
'carbone'
(
carbon
),
referring
to
compounds
producible
from
coal
tar
or
mineral
oils
.