1) Toxin 
A hepatotoxin (Gr., hepato = liver) is a toxic chemical substance that damages the liver. It can be a side-effect of medication, or found naturally, as microcystins, or in laboratory environments. The effects of hepatotoxins depend on the amount, point of entry and distribution speed of the toxin, and on the health of the person. ==Hepatotoxic sub...
A toxin that is destructive to parenchymal cells of the liver. ... (05 Mar 2000) ... 
(hep´ә-to-tok″sin) a toxic substance that destroys liver cells. adj., hep´atotoxic., adj.
Type: Term Pronunciation: hep′ă-tō-tok′sin Definitions: 1. A toxin that is destructive to parenchymal cells of the liver.