The scientific study of blood, its composition, diseases, and functions; the same as hematology.
From hemo- (blood) + -logy (Greek -logos, study or science). This is an older or variant term for hematology, using the Greek hemo- root instead of the Latin-influenced haemato-, common in late 19th and early 20th-century medical literature.
Hemology is one of those scientific terms that lost the popularity contest—hematology sounds fancier and is now standard, but hemology is the original stripped-down version that proves you can study blood without extra Greek syllables.
Complete word intelligence in one call. Free tier — 50 lookups/day.