phthalide

noun

ˈthaˌlīd,

ˈthā-,

-lə̇d

plural -s

: a crystalline lactone C₈H₆O₂ made usually by reduction of phthalic anhydride

Word History

Etymology

International Scientific Vocabulary phthal- + -ide

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