ATOM
none. 1 a smallest particle of a chemical element that can take part in a chemical reaction. B this as a source of nuclear energy. 2 minute portion or thing (atom of pity). [greek atomos indivisible]
none. 1 a smallest particle of a chemical element that can take part in a chemical reaction. B this as a source of nuclear energy. 2 minute portion or thing (atom of pity). [greek atomos indivisible]
none. 1 a smallest particle of a chemical element that can take part in a chemical reaction. B this as a source of nuclear energy. 2 minute portion or thing (atom of pity). [greek atomos indivisible]