‘C’ is for Carbon- Definition

Definition of carbon

carbon noun, often attributive
car·​bon | \ ˈkär-bən
1 : a nonmetallic chemical element with atomic number 6 that readily forms compounds with many other elements and is a constituent of organic compounds in all known living tissues — see Chemical Elements Table
2 : a carbon rod used in an arc lamp
3a : a sheet of carbon paper
b : carbon copy
merriam-webster.com/dictionary/carbon