nounchemistryThe number ofatomsin amolecule. nouncomputingThe state of asystem(often adatabasesystem) in which either all stagescompleteornonecomplete. Etymologies from Wiktionary, Creative Commons Attribution/Share-Alike License atomic+-ity
Phonetic (Standard)IPA noun Chemistry. the number of atoms in a molecule of a gas. valence. Discover More Word History and Origins Origin ofatomicity1 First recorded in 1860–65;atomic+-ity Discover More Example Sentences Examples have not been reviewed. ...