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Z line

noun

Definition of Z line

  1. :  any of the dark thin bands across a striated muscle fiber that mark the junction of actin filaments in adjacent sarcomeres

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First Known Use of z line

1916

Medical Dictionary

Z line

noun

Medical Definition of Z line

  1. :  any of the dark bands across a striated muscle fiber that mark the junction of actin filaments in adjacent sarcomeres

Learn More about z line

  1. See words that rhyme with Z line Britannica.com: Encyclopedia article about Z line

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