1. A delayed response by an object to changes in the forces acting on it; especially, magnetic forces.
2. The lagging of an effect behind its cause, as when the change in magnetism of a body lags behind changes in the magnetic field.
3. A condition in which the state of a system depends on its previous history, generally the retardation or lagging of an effect behind the cause of the effect.

Specifically, the inclination of a magnetic material to saturate and retain some of its magnetism after the alternating magnetic field to which it is subjected reverses polarity.

4. A time lag in the occurrence of two associated phenomena; such as, between cause and effect.

In cardiac pacing terminology, the number of pulses per minute below the programmed pacing rate that the heart must drop in order to cause initiation of pacing; it can be programmed in by a pulse generator.

5. The failure of the manifestation of an effect to keep up with its cause.
6. Etymology: origin from the late 19th century, from Greek husteresis (now hysteresis), "shortcoming, deficiency"; from husterein, "to be behind", from husteros, "late".

The dependence of the polarization of ferroelectric materials not only on the applied electric field but also on their previous history.

It is similar to magnetic hysteresis in ferromagnetic materials.

Hysteresis is the lag between making a change; such as, increasing or decreasing electric power, and the response or effect of that change.

It usually refers to turn-on and turn-off points in electrical, electronic, and mechanical systems.

A clutch that produces torque by magnetic hysteresis.

The constant of proportionality in a formula for hysteresis loss.

An electric coupling in which torque is transmitted by hysteresis; that is, forces from the resistance of magnetic fields within a ferromagnetic material.

A cycle of variation in the magnetic field used for magnetic induction.

The field is periodically reversed until the magnetic induction is a function only of the strength of the field and of its rate of change.

The maximum difference between the upscale-going and downscale-going values of the driven variable, at a common driving variable in a hysteresis loop.

1. An energy loss in magnetic material due to an alternating magnetic field; such as, elementary magnets within the material align themselves with the reversing magnetic field.
2. The loss of energy by conversion to heat in a system exhibiting hysteresis.

Hysteresis loss in a magnetic circuit is the energy expended to magnetize and demagnetize the core.

A small synchronous motor; such as, a phonograph motor, for light-duty, constant-speed applications.

It uses hysteresis and eddy-current losses induced in its hardened-steel rotor to produce rotor torque.

The hysteretic behavior of a piezoelectric crystal in which the electric polarization depends on the stress history as well as on the mechanical stress applied to the crystal.