sulphamic

from The Century Dictionary.

• Having sulphur and ammonium as the characteristic constituents.

from the GNU version of the Collaborative International Dictionary of English.

• adjective (Chem.) Of or pertaining to a sulphamide; derived from, or related to, a sulphamide; specifically, designating an amido acid derivative, NH2.SO2.OH, of sulphuric acid (analogous to sulphonic acid) which is not known in the free state, but is known in its salts.