research and development 
noun [mass noun]
(In industry) work directed towards the innovation, introduction, and improvement of products and processes.Possible measures include giving oil and gas exploration the same status as industrial research and development....
- The company spent a lot of money on research and development and new products were coming on stream, but not fast enough.
- He said the company would continue to invest in research and development and build its product range.
- musica reservata
- musicassette
- music band
- music book
- music box
- music case
- music cassette
- music centre
- music club
- music college
- music demy
- music director
- music drama
- music-dramatist
- music festival
- music gallery
- music-grinder
- music hall
- music-hallish
- music-hally
- music historian
- music-historical
- music history
- music house
- musician