Wordnet 3.0
NOUN (1)
1.
an acid known only in the form of its esters;
The Collaborative International Dictionary of English v.0.48:
Isocyanic \I`so*cy*an"ic\, a. [Iso- + cyanic.] (Chem.)
Designating an acid isomeric with cyanic acid.
[1913 Webster]
Isocyanic acid, an acid metameric with cyanic acid, and
resembling it in its salts. It is obtained as a colorless,
mobile, unstable liquid by the heating cyanuric acid.
Called technically carbimide.
[1913 Webster]
WordNet (r) 3.0 (2006):
isocyanic acid
n 1: an acid known only in the form of its esters