Origin: Latin suffix -al
Chemical has 5 different meanings across 2 categories:
material produced by or used in a reaction involving changes in atoms or molecules
"The lab technician carefully mixed the reagents to create a chemical that would break down the stubborn stain on the fabric."
Any specific chemical element or chemical compound or alloy.
"The lab technician carefully measured out a precise amount of sodium chloride before adding it to the reaction mixture."
In plain English: A chemical is any substance made of atoms that you can find in nature or create in a lab.
"The chemist added a specific chemical to the mixture to start the reaction."
Usage: Use "chemical" as a noun to refer specifically to any distinct substance like an element, compound, or alloy that has been identified and isolated. Avoid using it loosely to describe anything artificial or non-natural; instead, reserve the term for actual matter with defined molecular structures.
of or made from or using substances produced by or used in reactions involving atomic or molecular changes
"chemical fertilizer"
Of or relating to chemistry.
"The teacher explained that understanding chemical reactions is essential for anyone studying chemistry."
In plain English: Chemical describes something that is made of substances you can find in nature or create in a lab, like the ingredients inside a bottle of medicine.
"The chemical smell in the room made everyone cough."
Usage: Use "chemical" as an adjective to describe substances created through chemical reactions or having specific molecular properties, such as a chemical solution or chemical bond. Avoid using it merely as a synonym for "artificial" when describing food additives, where terms like "synthetic" are more precise.
The word chemical comes from the Old French term chemic, which originally meant alchemy. It was later adapted into English with the suffix -al to describe anything related to this early form of chemistry.