What does it mean to say a substance is toxic?

Question

Quizplus · Accepted Answer

When a substance is considered toxic, it means that it has the potential to cause harm or illness when it is ingested, breathed in, or comes into contact with skin or eyes. Toxic substances can include synthetic chemicals, but they can also include natural substances like lead or arsenic. The term "toxic" does not necessarily imply that a substance is radioactive or that it specifically interferes with child development.

What Does It Mean to Say a Substance Is Toxic