Also known as gustation colorée. Both terms are used to denote a *chromatism (i.e. a hallucinated colour, or coloured light) arising simultaneously with, or in succession to, a taste sensation. Coloured taste is classified as one of the many forms of * synaesthesia.
References
Cytowic, R.E. (2002). Synesthesia. A union of the senses. Second edition. Cambridge, MA: MIT Press.
Dictionary of Hallucinations. J.D. Blom. 2010.