The word "fm" can refer to two different things in English, depending on the context. Let's break them down:
Definition: In the context of radio, "FM" stands for "Frequency Modulation." It is a way of transmitting radio signals by varying the frequency of a carrier wave. This method is used for high-quality audio broadcasting.
Definition: "Fm" is also the symbol for the chemical element "Fermium." Fermium is a synthetic, radioactive element that is a type of transuranic metallic element. It is produced by bombarding plutonium with neutrons.