Definition of tolylene diisocyanate
: any of six isomeric esters CH3C6H3(NCO)2 of isocyanic acid or a mixture of them
especially
: a liquid isomer made by reaction of tolylenediamine (see tolylenediamine sense a) and phosgene and used by itself or in a mixture with another meta isomer in making polyurethanes; 4-methyl-meta-phenylene diisocyanate
Test Your Vocabulary
Name That Food
-
- Name these cookies!

Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share tolylene diisocyanate