isocyanate

[ ahy-suh-sahy-uh-neyt ]
/ ˌaɪ səˈsaɪ əˌneɪt /

noun Chemistry.

a salt or ester of isocyanic acid.
any compound containing the univalent group −NCO.

Origin of isocyanate

First recorded in 1870–75; isocyan(ic acid) + -ate2