Definitions of Research, Development or Innovation activities are standardised and measured by the OECD, Eurostat, etc.
Another abbreviation, RTD refers to Research and Technological Development. They are aimed at advancing significantely the established state-of-the-art. Research, with education and innovation, forms the “knowledge triangle“, which it is hoped will allow Europe to maintain its economic dynamism and social model.
https://ec.europa.eu/eurostat/statistics-explained/index.php?title=Category:Research_and_development