sarcomere

[ sahr-kuh-meer ]

/ ˈsɑr kəˌmɪər /

Save This Word!

noun Biology.

any of the segments of myofibril in striated muscle fibers.

QUIZ

CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?

There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?

Question 1 of 7

Which sentence is correct?

His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

TAKE THE QUIZ TO FIND OUT

Origin of sarcomere

First recorded in 1890–95; sarco- + -mere

Words nearby sarcomere

sarcoidosis, sarcolemma, sarcology, sarcoma, sarcomatosis, sarcomere, sarcophagous, sarcophagus, sarcophile, sarcoplasm, sarcoplasmic reticulum

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use sarcomere in a sentence

More myofibrils will increase the mass of a muscle cell while more sarcomeres will increase the length.
Everything you’ve ever wanted to know about muscles|Claire Maldarelli and Sara Chodosh|October 3, 2021|Popular-Science

British Dictionary definitions for sarcomere

sarcomere

/ (ˈsɑːkəʊˌmɪə) /

noun

any of the units that together comprise skeletal muscle

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for sarcomere

sarcomere

[ sär′kə-mîr′ ]

The contractile unit of a skeletal muscle fiber. Sarcomeres are divided into bands of filaments made of actin or myosin. During muscle contraction, the filaments slide over each other to cause shortening of the sarcomere.