Synonyms for Tetany (same or very similar meaning)
WordNet sense 1 (clinical neurological syndrome characterized by muscular twitching and cramps and (when severe) seizures; associated with calcium deficiency (hypoparathyroidism) or vitamin D deficiency or alkalosis):
tetanilla, apyretic tetanus, intermittent cramp, intermittent tetanusFrom the ODE community, based on WordNetadd/edit