histiocytosis X
n.
Any of a group of disorders of unknown cause characterized by histiocytic proliferation, including Hand-Schüller-Christian disease.
QUIZZES
Can You Ace This Quiz About “Compliment” vs. “Complement”?
Take this quiz to see if you really know the difference between “compliment” and “complement"!
Question 1 of 11
“Compliment” and “complement” had a shared meaning a long time ago, but today they are no longer interchangeable.
The American Heritage® Stedman's Medical Dictionary
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