Rh-null

Adjective

 * 1) Pertaining to the, or  produced by the syndrome.

Related terms

 * pertaining to blood missing Rh factor D, one of 61 Rh blood factors
 * pertaining to blood containing Rh factor D, one of 61 Rh blood factors

Noun

 * 1) ; a, in which red blood cells are completely lacking in all antigens of the Rh-blood-typing system (s), a system of 61  types.