Literally meaning: toxin of intestine
Origin: Anc Greek
έντερον/enteron(=intestine, bowel) < εντός/entos(=inside, within)
+τοξικόν/toxikon(= poison used to poison arrow heads)
A peptide or protein that is produced by living organisms in the intestine and is capable of causing disease mainly by affecting the gastrointestinal tract and causing vomiting, diarrhoea, and abdominal pain.