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Pronunciation: mī′ō-fī′bril
Definition: One of the fine longitudinal fibrils occurring in a skeletal or cardiac muscle fiber comprising many regularly overlapped ultramicroscopic thick and thin myofilaments.
Synonym(s): muscular fibril, myofibrilla
[myo- + Mod. L. fibrilla, fibril]
Examples: glitazone, GI cocktail, etc.
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