clonus

[ kloh-nuhs ]

noun

, Pathology.

, plural clo·nus·es.

1. a rapid succession of flexions and extensions of a group of muscles, usually signifying an affection of the brain or spinal cord.

clonus

/ ˈklɒnɪk; klɒˈnɪsɪtɪ; ˈkləʊnəs /

noun

1. a type of convulsion characterized by rapid contraction and relaxation of a muscle

Derived Forms

• clonic, adjective
• clonicity, noun

Word History and Origins

Origin of clonus¹

1810–20; < New Latin < Greek klónos turmoil

Word History and Origins

Origin of clonus¹

C19: from New Latin, from Greek klonos turmoil

Example Sentences

No foot clonus, no Babinski; abdominal reflexes present, cremasteric not elicited; catalepsy not always present.

From Project Gutenberg

Both deep and superficial reflexes exaggerated; ankle clonus both sides; hyperæsthesia of abdomen and face.

From Project Gutenberg

Upon tapping, the quadriceps tendon caused a brisk marked contraction of thigh muscles, followed by mild clonus.

From Project Gutenberg

Tapping of one knee tended to set musculature of opposite knee in mild clonus of short duration.

From Project Gutenberg

Musculature of legs was in a constant mild clonus, and the right foot was kept in position of talipes equinovarus.

From Project Gutenberg