`` Toxics ' is an acceptable plural for the term toxic .
A toxin ( Greek : , toxikon ) is a poisonous substance produced by living cells or organisms ( although humans are technically living organisms , man-made substances created by artificial processes usually are n't considered toxins by this definition ) .For a toxic substance not produced by living organisms , `` toxicant '' is the more appropriate term , and `` toxics '' is an acceptable plural .
Toxin