mol

/moʊl/
noun
  1. The base unit in chemistry for measuring the amount of a substance, equal to about 6.022 × 10²³ particles (atoms, molecules, etc.).
    • To find the mass of one mol of carbon, you look at its atomic weight on the periodic table.
    • The chemist added 0.5 mol of sodium chloride to the solution.
    • One mol of water contains about 6.022 × 10²³ water molecules.