#structural similarity

• Analog — Presenting an analogy; resembling, similar, or partially identical to another object, phenomenon, or concept from a structural or functional viewpoint. In electronics and cybernetics, it describes a device, signal, or computer that operates with continuous physical quantities (voltage, current) to represent data, as opposed to digital systems. In biology, it refers to organs with similar functions but different embryonic origins.
• Analogy — A total or partial resemblance, structural correspondence, or proportional ratio established between two or more objects, phenomena, words, or concepts that are otherwise different in their essence. In logic, it represents a form of inductive reasoning by which it is deduced that if two elements resemble each other in certain respects, they will probably resemble each other in others. In linguistics, it denotes the process of creating or modifying grammatical forms under the influence of a dominant linguistic pattern.