Hr factor

noun

ˈā-ˈchär- How to pronounce Hr factor (audio)
: a substance present in Rh-negative blood and apparently reciprocally related to the Rh factor

Dictionary Entries Near Hr factor

hr

Hr factor

HRT

See More Nearby Entries 

Cite this Entry

“Hr factor.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Hr%20factor. Accessed 4 Feb. 2023.

Copy Citation

Share

Love words? Need even more definitions?

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

Word of the Day

Listen to the pronunciation of scrutinize

See Definitions and Examples »

Test Your Vocabulary

Commonly Confused Words Quiz

  • vector image of a face with thought expression
  • I went to the ______ store to buy a birthday card.
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?

PLAY
Words at Play
Ask the Editors
Word Games