adj, noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Ellipsis of Rh-null blood, a blood type, in which red blood cells are completely lacking in all antigens of the Rh-blood-typing system (Rh factors), a system of 61 antigen types. abbreviation, alt-of, ellipsis, uncountable

Adjective

1. 1
   Pertaining to the Rh-null syndrome, or blood produced by the syndrome. not-comparable

Synonyms

All synonyms

golden blood

Etymology

From Rh (“Rhesus factor”) + null (“missing, none”).

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.