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lysozyme

American  
[lahy-suh-zahym] / ˈlaɪ səˌzaɪm /

noun

Biochemistry.
  1. an enzyme that is destructive of bacteria and functions as an antiseptic, found in tears, leukocytes, mucus, egg albumin, and certain plants.


lysozyme British  
/ ˈlaɪsəˌzaɪm /

noun

  1. an enzyme occurring in tears, certain body tissues, and egg white: destroys bacteria by hydrolysing polysaccharides in their cell walls

"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

Etymology

Origin of lysozyme

First recorded in 1920–25; lyso- + (en)zyme

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.

It was his identification of lysozyme, an enzyme that attacks the cell walls of bacteria.

From Scientific American

The goats were engineered to produce milk that contained lysozyme, an enzyme with antibiotic properties.

From Nature

One invasive fungus in termite colonies in the US and Japan pretends to be a termite egg, going so far as to secrete the chemical lysozyme, which the termites use to recognise their eggs.

From The Guardian

It was, perhaps, a rare impulse among scientists that had also enabled Fleming’s earlier discovery of lysozyme, an antibacterial enzyme present in mucus and tears.

From Time

An egg white is made of water containing a variety of proteins, including lysozyme, which plays a part in the immune system.

From Scientific American