Definition of endotoxin
: a toxic heat-stable lipopolysaccharide substance present in the outer membrane of gram-negative bacteria that is released from the cell upon lysis
endotoxicplay \ˌen-dō-ˈtäk-sik\ adjective
Recent Examples of endotoxin from the Web
To test Marik's protocol, Catravas and his team cultured endothelial cells from lung tissue and exposed them to the endotoxin found in septic patients.
Twenty-four people were injected with E. coli endotoxin, and researchers tracked their immune responses.
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Origin and Etymology of endotoxin
International Scientific Vocabulary
First Known Use: 1904See Words from the same year
Medical Definition of endotoxin
: a toxin of internal origin; specifically : a poisonous substance present in bacteria (as the causative agent of typhoid fever) but separable from the cell body only on its disintegration—compare exotoxin
Learn More about endotoxin
Britannica.com: Encyclopedia article about endotoxin
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