chemical /ˈkɛm.ɪ.kəl/adjective 3noun 3forms 1 adjective3 •connected with the science of what things are made of and how they change when mixedchemical experimentsthe chemical properties of iron •Of or relating to a material or processes not commonly found in nature or in a particular product. •(no longer used) Of or relating to alchemy. noun3 •Any specific chemical element or chemical compound or alloy.Hydrogen and sulphur are both chemicals. •(informal) An artificial chemical compound.I color my hair with henna, not chemicals. •(slang) An addictive drug. formschemicals
