prototyping UK /ˈpɹəʊtətaɪpɪŋ/US /ˈpɹoʊtəˌtaɪpɪŋ/ noun1 •The rapid creation of prototypes of a new product for demonstration and research purposes.■ A Design and Build Contract for the design, software development, prototyping, factory testing, integration testing, installation, static and dynamic testing and commissioning of the TDS. — 2023