The Clydesdale is a draft horse breed from Lanarkshire, Scotland, and its name was inspired by the River Clyde. The Clydesdaleâs history goes back to the mid-1700s, when native stocks were mated with larger Flemish horses and then selected for use in agriculture and for all types of heavy hauling, including transport through the streets of Glasgow.
Definition. 1  A carcinogen is a substance that causes cancer (or is believed to cause cancer). 2  A carcinogenic material is one that is known to cause cancer. 3  The process of forming cancer cells from normal cells or carcinomas is called carcinogenesis. A carcinogenic material is one that is known to cause cancer. 2  The process of forming cancer cells from normal cells or carcinomas is called carcinogenesis.
A substance is considered carcinogen if it is ( 1 ) found to be a carcinogen or potential carcinogen by the International Agency For Research On Cancer , ( 2 ) listed as carcinogen or potential carcinogen in the latest edition of Annual Report On Carcinogens published by the US National Toxicology Program or , ( 3 ) is regulated by the US ...