Car·bam'ic (kär*băm'ĭk) adjective [ Carb on + am ido.] (Chemistry) Pertaining to an acid so called. Carbamic acid (Chemistry) , an amido acid, NH 2 .CO 2 H, not existing in the free state, but occurring as a salt of ammonium i... Found on http://www.encyclo.co.uk/webster/C/23