Sulphamic \Sulph*am"ic\, a. (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.
[1913 Webster]