endoplasmic reticulum

noun

Definition of endoplasmic reticulum

: a system of interconnected vesicular and lamellar cytoplasmic membranes that functions especially in the transport of materials within the cell and that is studded with ribosomes in some places — see cell illustration

Examples of endoplasmic reticulum in a Sentence

Recent Examples on the Web The signal peptide sequence ferries signaling proteins to a port on the endoplasmic reticulum. William A. Haseltine, Forbes, 30 Aug. 2021 Among them was a gene called Immediate Early Response 3 Interacting Protein 1 in the endoplasmic reticulum, which is the protein processing station within a cell. Priyanka Runwal, STAT, 30 Oct. 2020 Some of those proteins stretch the endoplasmic reticulum, creating protective vesicles, or sacs. Mark Fischetti, Scientific American, 23 June 2020 Our cells have many compartments — lysosomes for breaking down food molecules, for example, and the endoplasmic reticulum for moving proteins around the cell. Carl Zimmer, STAT, 30 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'endoplasmic reticulum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of endoplasmic reticulum

1947, in the meaning defined above

Keep scrolling for more

Learn More About endoplasmic reticulum

Time Traveler for endoplasmic reticulum

Time Traveler

The first known use of endoplasmic reticulum was in 1947

See more words from the same year

Dictionary Entries Near endoplasmic reticulum

endoplasma

endoplasmic reticulum

endoplast

See More Nearby Entries 

Statistics for endoplasmic reticulum

Last Updated

11 Sep 2021

Cite this Entry

“Endoplasmic reticulum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/endoplasmic%20reticulum. Accessed 16 Sep. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

More Definitions for endoplasmic reticulum

endoplasmic reticulum

noun
en·​do·​plas·​mic re·​tic·​u·​lum | \ ˌen-də-ˈplaz-mik-ri-ˈti-kyə-ləm \

Kids Definition of endoplasmic reticulum

: a system of cavities and tiny connecting canals that occupy much of the cytoplasm of the cell and functions especially in the movement of materials within the cell

endoplasmic reticulum

noun

Medical Definition of endoplasmic reticulum

: a system of interconnected vesicular and lamellar cytoplasmic membranes that functions especially in the transport of materials within the cell and that is studded with ribosomes in some places — see rough endoplasmic reticulum

More from Merriam-Webster on endoplasmic reticulum

Britannica.com: Encyclopedia article about endoplasmic reticulum

WORD OF THE DAY

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!