noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   An excess of histiocytes, associated with various rare diseases. countable, uncountable
2. 2
   a blood disease characterized by an abnormal multiplication of macrophages wordnet

Etymology

From international scientific vocabulary, reflecting New Latin combining forms: histiocyte + -osis = histio- + -cyte + -osis.

Related phrases

sea-blue histiocytosis

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.