complementarity; complementation
Technical term used in physics, philosophy, and linguistics to describe a relationship where two aspects are mutually exclusive yet jointly necessary. In physics, it often refers to wave-particle duality.
In quantum mechanics, the complementarity of particles and waves is an important concept.
This theory emphasizes the complementarity of the two perspectives.
complementarity principle
Compound of 相 (mutual) + 補 (supplement) + 性 (property/nature). Likely a Meiji-era calque from Western academic terminology.