Rh positive

or Rh-pos·i·tive

[ ahr-eych poz-i-tiv ]

adjective

1. Rh factor

Rh positive

noun

1. blood containing the Rh factor
2. a person having such blood

Word History and Origins

Origin of Rh positive¹

First recorded in 1955–60

Example Sentences

Looking at just the Rh factor, the team found that diabetes risk was the same whether or a not a woman was Rh positive or Rh negative.

From US News

If the mother has Rh negative blood but the baby is Rh positive she can develop antibodies to her baby´s blood during labour.

From BBC