phthalazine

noun

phthal·​azine

(ˈ)thal+

: a crystalline base C₈H₆N₂ that is the azine of the dialdehyde related to phthalic acid; 2,3-di-aza-naphthalene compare hydralazine, luminol

Word History

Etymology

International Scientific Vocabulary phthal- + azine

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