- a person or thing that brightens.
- a chemical or other agent used to increase brightness, as one added to toothpaste or detergent to intensify the cleansing or bleaching process.
Origin of brightener
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for brightener
But chaperonage was far from the whole destiny of a Brightener.
Mine was to gird my loins at Lucille's and Redfern's, in order to become a Brightener.
But I felt that my reputation as a Brightener was at stake, with Terry's hopes.
That epoch, to which I have looked forward as the brightener of my every view upon earth—how is it now clouded!'Camilla
A Brightener need not confine herself to female society, as a mere Companion must.