Source : Free On-Line Dictionary of Computing

Refined C
     
        (RC) An extension of C to directly specify data access rights
        so that flow analysis, and hence automatic parallelisation, is
        more effective.  Research implementations only.  "Refining A
        Conventional Language For Race-Free Specification Of Parallel
        Algorithms," H.G. Dietz et al, Proc 1984 Intl Conf Parallel
        Proc, pp.380-382.