noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   An abnormal microscopic pigment, formed of granules of a complex of iron hydroxides, protein and polysaccharides, that forms in tissues of patients having an excess of iron countable, uncountable
2. 2
   a granular brown substance composed of ferric oxide; left from the breakdown of hemoglobin; can be a sign of disturbed iron metabolism wordnet

Synonyms

All synonyms

haemosiderin

Etymology

From hemo- + sidero- + -in.

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