1. The branch of physics and chemistry that deals with ions and ionic phenomena, including the behavior and properties of charged particles in solutions and gases.
Usage: technical; usually used in singular form as a mass noun
2. In architecture and classical design, the study or application of the Ionic order, one of the three principal orders of classical Greek and Roman architecture.
Usage: specialized; historical

Examples

• The ionics of salt solutions explains how ions conduct electricity in water.
• Students learned about ionics in their advanced chemistry course.
• The architect studied ionics to understand the proportions of classical columns.
• Ionics plays a crucial role in understanding battery chemistry.
• The ionics of atmospheric electricity involves the movement of charged particles.