diluent

(b) "diluent " means any component of colouring preparation that is not itself a colouring substance and has been intentional mixed therein to facilatate the use of the mixture in colouring foods.
PU(A) 437/2011 - FOOD REGULATIONS 1985
21. Colouring substance.

diluent

(b) "diluent" means any component of colouring preparation that is not itself a colouring substance and has been intentional mixed therein to facilatate the use of the mixture in colouring foods.
PU(A) 437/1985 - FOOD REGULATIONS 1985
21. Colouring substance.