sarcoplasmic reticulum

[ sahr-kuh-plaz-mik ]

nounCell Biology.
  1. a system of membrane-bound tubules that surrounds muscle fibrils, releasing calcium ions during contraction and absorbing them during relaxation.

Origin of sarcoplasmic reticulum

First recorded in 1950–55; sarco- + plasm(a) + -ic

Words Nearby sarcoplasmic reticulum Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023