leuco ester

noun

: a water-soluble sodium salt of the sulfuric acid ester of the leuco compound of a vat dye that is applied to textiles and then oxidized in acid solution to the corresponding vat dye

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now