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id·io·mus·cu·lar -'məs-kyə-lər adj relating to muscular tissue exclusively esp originating in muscle <\idiomuscular contraction>
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id·io·mus·cu·lar (id″e-o-musґku-lər) [idio- + muscular] pertaining to the muscular tissue apart from any nerve stimulus; a term applied to certain muscular contractions which occur in degenerated muscles only.Medical dictionary. 2011.