formula
  • noun a representation of the chemical composition of a compound in terms of its atoms
  • A mathematical expression utilized to relate quantities and solve problems. For example, the mass-energy equation is expressed as: E = mc2, where E is energy, m is mass, and c is the speed of light in a vacuum.
  • A combination of chemical symbols and numbers which describes the chemical composition of a substance. For instance, the chemical formula of boron trichloride is BCl3, indicating that for each boron atom there are three chlorine atoms. Also called chemical formula (2).

Not what you were looking for?