paroxysmal nocturnal hemoglobinuria

noun

Medical Definition of paroxysmal nocturnal hemoglobinuria

: a form of hemolytic anemia that is characterized by an abnormally strong response to the action of complement, by acute episodes of hemolysis especially at night with hemoglobinuria noted upon urination after awakening, venous occlusion, and often leukopenia and thrombocytopenia abbreviation PNH

Learn More about paroxysmal nocturnal hemoglobinuria

Cite this Entry

“Paroxysmal nocturnal hemoglobinuria.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/paroxysmal%20nocturnal%20hemoglobinuria. Accessed 4 Jun. 2020.

Comments on paroxysmal nocturnal hemoglobinuria

What made you want to look up paroxysmal nocturnal hemoglobinuria? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

May 2020 Words of the Day Quiz

  • a blooming wisteria tree
  • Which is a synonym of exiguous?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

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!