| 单词 | tonic motion | 
| 释义 | > as lemmastonic motiontonic contraction, continuous muscular contraction without relaxation.  tonic convulsion or spasm, one characterized by such contraction (opposed to clonic adj.).  †tonic motion, a former term for a state of continuous tension in the muscles such as that which keeps the body erect (cf. quot. 1646 at tonical adj. 1).extracted from tonicadj.n. < as lemmas | 
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