r-colour

r-colour

or

r-colouring

n
(Phonetics & Phonology) phonetics an (r) quality imparted to certain vowels, usually by retroflexion
ˈr-ˌcoloured adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014