| spasmus | Synonym: spasm. Origin: L. Fr. G. Spasmos, spasm (05 Mar 2000) |
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| spasmus caninus | The semblance of a grin caused by facial spasm especially in tetanus. Synonym: canine spasm, cynic spasm, risus sardonicus, sardonic grin, spasmus caninus, trismus sardonicus. Origin: L. Risus, laugh + caninus, doglike (05 Mar 2000) |
| spasmus coordinatus | Compulsive movements, such as imitative or mimic tics, festination, etc. (05 Mar 2000) |
| spasmus glottidis | A spasmodic closure of the glottis, lasting a few seconds, followed by a noisy inspiration. Compare: laryngitis stridulosa. Synonym: pseudocroup, spasmus glottidis. (05 Mar 2000) |
| spasmus nictitans | Involuntary spasmodic winking. Synonym: spasmus nictitans, winking spasm. (05 Mar 2000) |
| spasmus nutans | A fine nystagmus, sometimes rotary, sometimes monocular, associated with head-nodding movements. Synonym: nodding spasm. (05 Mar 2000) |