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Meaning of myofibril

my•o•fi•bril

Pronunciation: (mī"u-fī'brul, -fib'rul), [key]
— n. Cell Biol.
  1. a contractile fibril of skeletal muscle, composed mainly of actin and myosin.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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