# Rh-null

> English word · Adjective

## Definitions
1. Pertaining to the Rh-null syndrome, or blood produced by the syndrome.

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

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/rh-null