👉 The term "germanium" is often used to describe a type of material that has high electrical conductivity and can be found in materials like lithium, gallium, and germanium. It is also known as a semiconductor because it behaves like a conductor when excited by light or heat, but unlike metals, it does not conduct electricity through its own atoms. In the context of electronics, germaniums are used to make devices such as transistors and amplifiers that can operate at high frequencies