Definition, Meaning & Synonyms

hysteresis

noun

/ˌhɪstəˈriːsɪs/

Definition

Hysteresis is the phenomenon where the state of a system depends on its history, particularly in relation to energy loss.

Examples

The rubber band exhibits hysteresis; it does not return to its original length immediately after being stretched.
In magnetic materials, hysteresis is observed as a loop in the magnetization curve.
The temperature changes in a thermostat show hysteresis, as it will not switch back on immediately after reaching the set temperature.

Meaning

Hysteresis occurs when the response of a physical system to external forces is not instantaneous, leading to a difference in output when the input is decreased compared to when it is increased.