An involuntary muscular contraction and relaxation, especially the spasmodic movement seen in certain neurological disorders.

सूर्य-प्रकोष्ठी

English Usage: During the examination, the doctor observed signs of clonus in the patient's legs.

Hindi Usage: परीक्षा के दौरान, डॉक्टर ने रोगी के पैरों में सूर्य-प्रकोष्ठी के संकेत देखे।