ATOMICITY
Etymology
Noun
atomicity (countable and uncountable, plural atomicities)
(uncountable) The quality or state of being atomic—of being indivisible.
(chemistry) The number of atoms in a molecule.
(computing) The state of a system (often a database system) in which either all stages complete or none complete.
Source: Wiktionary
At`o*mic"i*ty, n. Etym: [Cf. F. atomicité.] (Chem.)
Definition: Degree of atomic attraction; equivalence; valence; also (a
later use) the number of atoms in an elementary molecule. See
Valence.
Source: Webster’s Unabridged Dictionary 1913 Edition