Synonyms

Rh positive

American

[ahr-eych poz-i-tiv] / ˈɑrˈeɪtʃ ˈpɒz ɪ tɪv /

Or Rh-positive

adjective

Rh factor

Rh positive British

noun

blood containing the Rh factor
a person having such blood

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Rh positive

First recorded in 1955–60

Compare meaning

How does rh-positive compare to similar and commonly confused words? Explore the most common comparisons:

Rh negative vs. Rh positive

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023