colourantcol‧our‧ant British English, colorant American English /ˈkʌlərənt/ noun [countable] - Although it is sold under that name it will have been replaced with a pigment or dye colourant.
- Delicate waves and subtle highlights enhance gentle movement Natural colourant adds richness to long, wavy hair.
nouncolour/colorcolouring/coloringcolorationcolourant/colorantcolourist/coloristadjectivecoloured/coloreddiscoloured/discoloredcolourful/colorful ≠ colourless/colorlessmulticolouredcolour/colorverbcolour/coloradverbcolourfully/colorfully ≠ colourlessly/colorlessly