phenyl isocyanate

noun

: a colorless liquid ester C₆H₅NCO of acrid odor made usually by the action of phosgene on aniline and used in identifying alcohols and amines by the formation of phenylurethans and phenyl-ureas respectively

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