1. (

• carbon ,
• C ,
• atomic_number_ ,

) an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds ;

2. (

• carbon_paper ,
• carbon ,

) 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 ;

3. (

• carbon ,
• carbon_copy

) a copy made with carbon paper ;