| myofibril | <cell biology> Long cylindrical organelle of striated muscle, composed of regular arrays of thick and thin filaments and constituting the contractile apparatus. (18 Nov 1997) |
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| myofibrilla | <cell biology> Long cylindrical organelle of striated muscle, composed of regular arrays of thick and thin filaments and constituting the contractile apparatus. (18 Nov 1997) |
| myofibrillar | Pertaining or relating to myofibril. (05 Mar 2000) |
| myofibrils | Slender threads which can be rendered visible in a muscle fibre by maceration in certain acids. They run parallel with the long axis of the fibre, and are composed of numerous myofilaments ( = microfilaments). (12 Dec 1998) |