- a rapid succession of flexions and extensions of a group of muscles, usually signifying an affection of the brain or spinal cord.
Origin of clonus
Examples from the Web for clonus
Historical Examples of clonus
Clonic, klon′ik, adj. pertaining to clonus, with alternate convulsive contractions and relaxations of the muscles (of spasms)—opp.
- a type of convulsion characterized by rapid contraction and relaxation of a muscle
Word Origin for clonus
Word Origin and History for clonus
"violent muscular spasms," 1817, from Modern Latin, from Greek klonos "turmoil, any violent motion; confusion, tumult, press of battle," from PIE *kel- "to drive, set in motion." Related: Clonic; clonicity.
- A form of movement marked by contractions and relaxations of a muscle, occurring in rapid succession, after forcible extension or flexion of a part.clonospasm