Analogue has several different meanings. Analogue is something having analogy to something else. In biology, it is defined as an organ or part analogous to the other. In chemistry, the word analogue is defined as one of a group of chemical compounds which are similar in structure but differ in elemental composition. Analogue is also a food prepared from vegetable matter like soybeans. This food has been processed to taste and look like another food so it can be used as a substitute for it. The word analogue can also be called Analog.