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.
An agent known to cause cancer; a cancer-producing substance. carcinogenic-a carcinogen is a chemical known or believed to cause cancer in mammals.Some chemicals are proven carcinogens, but many more are suspected to be carcinogenic. carcinogenic-a substance that has the capability of causing cancer. carcinogen is any chemical known to cause cancer, there are a great many number of items known to have carcinogens present in them. Examples include paint, cigaretes, and mo â¦ re.