noun
Medical term for involuntary rhythmic muscle movements; used in contexts such as essential tremor, Parkinsonian tremor, or physiological trembling.
本態性振戦は、手や頭にふるえが生じる病気です。
Essential tremor is a condition that causes shaking in the hands or head.
医師は患者の振戦の程度を評価した。
The doctor assessed the severity of the patient's tremor.
震え is the general word for trembling or shivering, used in everyday language for cold, fear, or excitement. 振戦 is a technical medical term for pathological tremor.
Sino-Japanese medical term composed of 振 (to shake, to wave) and 戦 (to tremble, to shiver). The reading しんせん follows the on'yomi of both characters.