Carbon is an element that takes the solid form of either graphite or diamond. Carbon is one of the basic elements of any living thing.

Carbon is known as the most essential element for life, and it's the second most abundant — after oxygen — in the human body. Carbon paper was an early method of making copies, using a sheet of paper coated with wax and, originally, carbon soot. The copy that results from writing or typing on paper that's placed on top, with a blank page beneath the carbon paper, is called a carbon copy. The Latin root of carbon is carbonem, "charcoal."

Definitions of carbon
  1. noun
    an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds
    synonyms: C, atomic number 6
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    a form of carbon having a large molecule consisting of an empty cage of sixty or more carbon atoms
    carbon 14, radiocarbon
    a radioactive isotope of carbon
    a charred substance
    charcoal, wood coal
    a carbonaceous material obtained by heating wood or other organic matter in the absence of air
    carbon black, crock, lampblack, smut, soot
    a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink
    activated carbon, activated charcoal
    powdered or granular carbon used for purifying by adsorption; given orally (as a slurry) it is an antidote for some kinds of poisons
    black lead, graphite, plumbago
    used as a lubricant and as a moderator in nuclear reactors
    adamant, diamond
    very hard native crystalline carbon valued as a gem
    lead, pencil lead
    mixture of graphite with clay in different degrees of hardness; the marking substance in a pencil
    buckminsterfullerene, buckyball
    a spheroidal fullerene; the first known example of a fullerene
    carbon nanotube, nanotube
    a fullerene molecule having a cylindrical or toroidal shape
    animal black, animal charcoal, bone black, bone char
    black substance containing char in the form of carbonized bone; used as a black pigment
    black diamond, carbonado
    an inferior dark diamond used in industry for drilling and polishing
    graphite (or a similar substance) used in such a way as to be a medium of communication
    the charred portion of a candlewick
    type of:
    chemical element, element
    any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
  2. noun
    a thin paper coated on one side with a dark waxy substance (often containing carbon); used to transfer characters from the original to an under sheet of paper
    synonyms: carbon paper
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    type of:
    a material made of cellulose pulp derived mainly from wood or rags or certain grasses
  3. noun
    a copy made with carbon paper
    synonyms: carbon copy
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    type of:
    a thing made to be similar or identical to another thing
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