The Chinese word **电磁** (diàncí), meaning "electromagnetic," is formed through a classical **coordinating compound** method, where two independent morphemes—**电** (diàn, "electricity") and **磁** (cí, "magnetism")—are combined to create a new, unified concept. This structure reflects the inherent relationship between the two phenomena, following a common pattern in modern Chinese technical terminology where two elemental characters are juxtaposed to denote a composite scientific field (electricity + magnetism = electromagnetism), mirroring the Western conceptual fusion while utilizing native lexical components.