👉 Hemiteria, also known as anharmonicity, is a property of a material that describes how it behaves under repeated applications. It refers to the tendency of matter to respond differently to external forces and stimuli in response to repeated application. In other words, if a material is hemitropic, it will tend to respond differently to changes in applied force than it would to simple linear or quadratic variations. This behavior can be quantified by measuring the ratio of the change in length over time