1. Plural of atomicity; the number of atoms in a molecule of a substance, or the number of replaceable atoms or groups in a compound.
Usage: chemistry; technical
2. In database systems, the property that ensures a transaction is completed entirely or not at all, with no partial updates.
Usage: computing; technical

Examples

• The atomicities of different elements determine how they bond in chemical reactions.
• Oxygen has an atomicity of 2 in its molecular form, O₂.
• The atomicities of various compounds can be determined through mass spectrometry.
• Database engineers must ensure atomicities of transactions to maintain data integrity.
• Understanding atomicities is essential for predicting molecular structure and reactivity.