プルキニエ線せん維いMeanings1nounPurkinje fiberSpecialized cardiac muscle fiber involved in electrical conduction in the heart. Used in medical and biological contexts.プルキニエ線せん維いは心しん臓ぞうの刺し激げき伝でん導どう系けいの一いち部ぶです。Purkinje fibers are part of the heart's conduction system.