histiocytosis

noun

his·​tio·​cy·​to·​sis -ˈtō-səs How to pronounce histiocytosis (audio)
plural histiocytoses -ˌsēz How to pronounce histiocytosis (audio)
: abnormal multiplication of macrophages
Langerhans cell histiocytosis
broadly : a condition characterized by such multiplication

Dictionary Entries Near histiocytosis

histiocytoma

histiocytosis

histochemical

See More Nearby Entries 

Cite this Entry

“Histiocytosis.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/histiocytosis. Accessed 21 Mar. 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 fawn

See Definitions and Examples »

Test Your Vocabulary

What Did You Just Call Me?

  • brown chihuahua sitting on the floor with squinting eyes looking at the camera
  • Before we went to her house, Hannah told us her aunt was a flibbertigibbet.
Name That Thing

You know what it looks like… but what is it called?

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