phys·i·co·chemical \|fizə̇(ˌ)kō, -zē(-+\adjective Etymology: alteration of earlier physicochymical, from New Latin physicochymicus physicochemical (from physico- + -chymicus — from chimicus, n., alchemist) + English -al — more at chemic 1.: physical and chemical < physicochemical properties > 2.: relating to physical chemistry < physicochemical experiments > • phys·i·co·chemically\“+\adverb