toxins

tox·in   (tŏk'sĭn)    n.  A poisonous substance, especially a protein, that is produced by living cells or organisms and is capable of causing disease when introduced into the body tissues but is often also capable of inducing neutralizing antibodies or antitoxins.

toxins

Poisonous substances, consisting mainly of protein, that are a by-product of metabolism in certain organisms. Toxins that enter the body through a bacterial infection can be very harmful and can result in diseases such as tetanus and botulism.

toxin 

Main Entry: tox·in
Pronunciation: 'täk-s&n
Function: noun
: a colloidal proteinaceous poisonous substance that is a specific product of themetabolic activities of a living organism and is usually very unstable, notably toxic when introduced into the tissues, and typically capable of inducing antibody formation —see ANTITOXIN, ENDOTOXIN, EXOTOXIN

toxin tox·in (tŏk'sĭn)
n.
A poisonous substance, especially a protein, that is produced by living cells or organisms and is capable of causing disease when introduced into the body tissues but is often also capable of inducing neutralizing antibodies or antitoxins.