Definify.com
Webster 1913 Edition
Tetanic
Te-tan′ic
,Adj.
 [Cf. L. 
tetanicus 
suffering from tetanus, Gr. [GREEK], F. tétanique
.] 1. 
(Physiol.) 
Of or pertaining to tetanus; having the character of tetanus; 
as, a 
 tetanic 
state; tetanic 
contraction.This condition of muscle, this fusion of a number of simple spasms into an apparently smooth, continuous effort, is known as tetanus, or 
tetanic 
contraction. Foster.
2. 
(Physiol. & Med.) 
Producing, or tending to produce, tetanus, or tonic contraction of the muscles;  
 as, a 
. See tetanic 
remedyTetanic
, Noun.
Te-tan′ic
,Noun.
 (Physiol. & Med.) 
A substance (notably nux vomica, strychnine, and brucine) which, either as a remedy or a poison, acts primarily on the spinal cord, and which, when taken in comparatively large quantity, produces tetanic spasms or convulsions. 
Definition 2025
tetanic
tetanic
English
Adjective
tetanic (not comparable)
-  of or relating to tetanus
-  Foster
- This condition of muscle, this fusion of a number of simple spasms into an apparently smooth, continuous effort, is known as tetanus, or tetanic contraction.
 
 
-  Foster
- causing tetanus
- of or relating to tetany
- causing tetany
Noun
tetanic (plural tetanics)
-  Any substance that causes tetanic spasms.
- Nux vomica, strychnine, and brucine are tetanics.