chemical

noun1 of 2

a basic substance produced by mixing elements

• “A chemical reaction takes place in one or more steps.”Tatoeba
• “Exposure to these chemicals can increase your risk of developing cancer.”Tatoeba

Sentences from Tatoeba show real usage. A word can have several meanings, so a sentence may use another one.

adjective2 of 2

Of or relating to a material or processes not commonly found in nature or in a particular product.