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

Browse Nearby Words

histiocytoma
histiocytosis
histochemical
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Cite this Entry

“Histiocytosis.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/histiocytosis. Accessed 28 May. 2025.

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