Rh-negative

adjective
Rh-neg·​a·​tive | \ ˌär-ˌāch-ˈne-gə-tiv How to pronounce Rh-negative (audio) \

Definition of Rh-negative

: lacking Rh factor in the red blood cells

First Known Use of Rh-negative

1945, in the meaning defined above

Learn More About Rh-negative

Time Traveler for Rh-negative

Time Traveler

The first known use of Rh-negative was in 1945

See more words from the same year

Dictionary Entries Near Rh-negative

rhm

Rh-negative

rho

See More Nearby Entries 

Statistics for Rh-negative

Cite this Entry

“Rh-negative.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Rh-negative. Accessed 2 Jul. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for Rh-negative

Rh-negative

adjective
Rh-neg·​a·​tive | \ ˌär-ˌāch-ˈneg-ət-iv How to pronounce Rh-negative (audio) \

Medical Definition of Rh-negative

: lacking Rh factor in the red blood cells

WORD OF THE DAY

Test Your Vocabulary

Words Named After People

  • name tags
  • Namesake of the leotard, Jules Léotard had what profession?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!