D defs.my
Entry 1 sense Webster, 1913

Atomicity

· At·o·mic·i·ty · IPA /ˌætəˈmɪsɪti/
01 n. Degree of atomic attraction; equivalence; valence; also (a later use) the number of atoms in an elementary molecule. See Valence.
  1. 1.
    Degree of atomic attraction; equivalence; valence; also (a later use) the number of atoms in an elementary molecule. See Valence.(Chem.) See: Valence