Medical dictionary. 2011.
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dissociation — 1. Separation, or a dissolution of relations. SYN: disassociation. 2. The change of a complex chemical compound into a simpler one by any lytic reaction, by ionization, by heterolysis, or by homolysis. 3 … Medical dictionary
syringomyelia — The presence in the spinal cord of longitudinal cavities lined by dense, gliogenous tissue, which are not caused by vascular insufficiency. S. is marked clinically by pain and paresthesia, followed by muscular atrophy of the hands and analgesia… … Medical dictionary