The parent mentioned Research And Development. Many people, including non-native speakers, may be unfamiliar with this word. Here is the definition^{(In beta, be kind):}

Research and development (R&D or R+D), also known in Europe as research and technical (or technological) development (RTD), is a general term for activities in connection with corporate or governmental innovation. Research and development is a component of Innovation and is situated at the front end of the Innovation life cycle. Innovation builds on R&D and includes commercialization phases. The activities that are classified as R&D differ from company to company, but there are two primary models, with an R&D department being either staffed by ... [View More]

^{See also: Return On Investment | Of New | Commercialization | Situated | Yield | Component | Governmental}

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