Definition of myofibril in English:


Syllabification: my·o·fi·bril
Pronunciation: /ˌmīōˈfībrəl, -ˈfib-


Any of the elongated contractile threads found in striated muscle cells.
More example sentences
  • In cross section, skeletal muscle fibers are seen to be composed of numerous small aggregates of contractile substance, the myofibrils.
  • Briefly, the cardiac myofibrils are composed of the major contractile proteins, actin and myosin.
  • Individual muscle cells are extremely elongated and enclose many-stranded cables woven from threads called myofibrils.

Definition of myofibril in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day rebuff
Pronunciation: rəˈbəf
reject (someone or something) in an abrupt manner…