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CHEMICAL definition: 1. any basic substance that is used in or produced by a reaction involving changes to atoms or.. Learn more. The meaning of CHEMICAL is of, relating to, used in, or produced by chemistry or the phenomena of chemistry. How to use chemical in a sentence. Chemical means involving or resulting from a reaction between two or more substances, or relating to the substances that something consists of. .chemical reactions that cause ozone destruction. .the. 6 days ago · Cooking, fermentation, glass making, and metallurgy are all chemical processes that date from the beginnings of civilization. Today, vinyl, Teflon, liquid crystals, semiconductors, and. Oct 15, 2023 · A chemical is any substance with a definite composition and distinct properties. All matter is made of chemicals, regardless of whether it is natural or synthetic.

Relating to or produced by means of chemistry: a chemical discovery; a chemical change. Hazard pictograms (symbols) Hazard pictograms alert us to the presence of a hazardous chemical. The pictograms help us to know that the chemicals we are using might cause harm to people or the. Dec 18, 2019 · A chemical by definition is any substance consisting of matter; this includes solids, liquids, and gas. Chemicals can either be of a pure substance or a mixture of substances. CHEMICAL definition: a substance produced by or used in a chemical process. See examples of chemical used in a sentence.