What is another word for reactant?
Pronunciation: [ɹɪˈaktənt] (IPA) 
Reactants are substances that undergo chemical reactions to form new compounds or molecules. Many times, scientists or chemists need to talk about reactants in different contexts. In such cases, they can use synonyms for the word reactant to make their communication more diverse and effective. Some synonyms for reactant include starting material, substrate, precursor, reagent, and raw material. Starting material refers to the initial substance needed for a chemical reaction. Substrate refers to the substance that enzymes act upon in a chemical reaction. A precursor is a substance that is transformed into a more complex substance through a chemical reaction. Reagent refers to a substance used to cause a chemical reaction. Raw material is a substance that is used as the basis for a final product.
