Thermojunction, also known as thermocouple, is a device that measures temperature. It works by creating a voltage between two different but connected metals, which then changes as the temperature changes. There are several different synonyms for the word thermojunction, including: temperature probe, thermoelectric sensor, thermal sensor, temperature gauge, and thermopile. Each of these words refers to a similar device that performs the same function as a thermojunction. These devices are commonly used in scientific research, industrial settings, and even in everyday household appliances like ovens and refrigerators. Regardless of the word used, these instruments play a crucial role in accurately measuring temperature in a variety of applications.