Question

What's a thermistor

Answer 1

Resistance of thermistors vary significantly with temperature , more than normal resistors.
Thermal + resistor = thermistor . they are made of ceramic or polymer.

Answer 2

You can call it a kind of temperature sensor, as its resistance changes with temperature , so
voltage around its terminal is also a function of temperature.

Answer 3

A thermistor is a device that has a negative coefficient in relation of heat to its Ohm value.The ohm value or resistance goes down as temp goes up.This is different than how electricity normally move through a conductor where heat increase's the resistance in a circuit or normal temp sensor.

Answer 4

Just think of an electrical resistor.