(Latin: different, diversity, change, changing)
Believed by some etymologists to be from varus, "bent, knock-kneed; to bend, to turn, to twist".
A two-electrode resistor made of semiconductor material and having voltage-dependent nonlinear resistance which drops with an increase in applied voltage; can be used to protect sensitive equipment from power spikes or lightning strikes by shunting the energy to the ground.
2. To change within a range of possibilities, or in connection with something else, or to make something undergo such a change.
3. To give variety or diversity to something or to change, to alter, and to modify.