clonic

[klon-ik, kloh-nik]

of or relating to clonus.

Origin of clonic

First recorded in 1840–50; clon(us) + -ic

Related formsclo·nic·i·ty

[kloh-nis-i-tee, klo-] /kloʊˈnɪs ɪ ti, klɒ-/, nounclon·ism

[kloh-niz-uh m] /ˈkloʊ nɪz əm/, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Convulsions are especially severe, at first tonic then clonic.
New, Old, and Forgotten Remedies: Papers by Many Writers
Various
However, the clonic nature of the spasm should prevent such an error.
Lameness of the Horse
John Victor Lacroix
Clonic, klon′ik, adj. pertaining to clonus, with alternate convulsive contractions and relaxations of the muscles (of spasms)—opp.
Chambers's Twentieth Century Dictionary (part 1 of 4: A-D)
Various
In both, the tonic with clonic convulsions were observed after a sufficient quantity of caffein was administered.
The Toxicity of Caffein
William Salant
Eyelid tics (says Parinaud) are known to ophthalmologists as clonic blepharospasms.
Tics and Their Treatment
Henry Meigne

clonic in Medicine

[klŏn′ĭk, klō′nĭk]

Of the nature of clonus, marked by contraction and relaxation of muscle.