Definition of Z line
:any of the dark thin bands across a striated muscle fiber that mark the junction of actin filaments in adjacent sarcomeres
What's Trending Now
More Trending Words
Z line
noun
Read the Latest from M-W
First Known Use of z line
1916
Medical Dictionary
Z line
noun
medical Definition of Z line
: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
-
See words that rhyme with Z line Britannica.com: Encyclopedia article about Z line
Seen and Heard
What made you want to look up Z line? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!