Subsultus is a medical term that refers to sudden, involuntary muscle contractions or movements. It is commonly associated with conditions such as epilepsy, Parkinson's disease, and Tourette syndrome. Synonyms for subsultus include twitching, jerking, spasm, convulsion, and tremor. Twitching is an abrupt or quick movement, while jerking is a sudden and sharp motion. Spasms are muscle contractions that can be painful and prolonged. Convulsions are usually associated with seizure disorders, and tremors are shaking movements that are usually rhythmic or continuous. By understanding these synonyms, healthcare professionals can better diagnose and treat patients with subsultus or similar symptoms.