Main Entry: en·do·tox·in

Pronunciation: \ˌen-dō-ˈtäk-sən\

Function: noun

Etymology: International Scientific Vocabulary

Date: 1904

: a toxic heat-stable lipopolysaccharide substance present in the outer membrane of gram-negative bacteria that is released from the cell upon lysis

— en·do·tox·ic \-sik\ adjective