11 letters · 17 points in Scrabble
noun a granular brown substance composed of ferric oxide; left from the breakdown of hemoglobin; can be a sign of disturbed iron metabolism
originEtymology tree Ancient Greek αἷμᾰ (haîmă) Ancient Greek αἱμο- (haimo-) English haemo- English hemo- English sidero- Proto-Indo-European *-nós Proto-Indo-European *-iHnos Proto-Italic *-īnos Latin -īnusder. Old French -inbor. Middle English -in English -ineclip. English -in English hemosiderin From hemo- + sidero- + -in.
Etymology from Wiktionary, CC BY-SA 3.0