オブザーバブルMeanings1nounobservablephysicsPhysics term for a measurable physical quantity, such as position, momentum, or energy. Used in quantum mechanics and related fields.量りょう子し力りき学がくでは、位い置ちや運うん動どう量りょうはオブザーバブルとして扱あつかわれる。In quantum mechanics, position and momentum are treated as observables.