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peptidoglycan

American  
[pep-tuh-doh-glahy-kan] / ˌpɛp tə doʊˈglaɪˌkæn /

noun

peptidoglycans plural
  1. a polymer found in the cell walls of bacteria, composed of glycans and peptide chains.


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noun

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Breaking out requires getting through the peptidoglycan layer.

From Science Daily • Feb. 28, 2026

It transports peptidoglycan precursors from the inside of the cell across the membrane so they can be incorporated into the growing cell wall.

From Science Daily • Feb. 28, 2026

Clemons explains, "Getting back out means that they have to get past the peptidoglycan layer. Because it acts like chainmail, the phages get stuck if they can't break through it."

From Science Daily • Feb. 28, 2026

Gram-positive bacteria have a single cell wall formed from peptidoglycan.

From Textbooks • Apr. 25, 2013

Gram-negative bacteria have a cell wall made of peptidoglycan, while Gram-positive bacteria have a cell wall made of phospholipids.

From Textbooks • Apr. 25, 2013

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