Definition of Exotoxin
1. Noun. A toxin that is secreted by microorganisms into the surrounding medium.
Definition of Exotoxin
1. an excreted toxin [n -S] : EXOTOXIC [adj]
Medical Definition of Exotoxin
1.
Toxin released from gram-positive and gram-negative bacteria as opposed to endotoxins that form part of the cell wall.
Examples are cholera, pertussis and diphtheria toxins. Usually specific and highly toxic.
This entry appears with permission from the Dictionary of Cell and Molecular Biology
(11 Mar 2008)
Lexicographical Neighbors of Exotoxin
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