The branch of medicine that deals with blood, blood diseases, and the organs that produce blood.
Greek 'haima' (blood) + 'logos' (study), combining to mean 'the study of blood.' This scientific field formalized in the 1800s as microscopy advanced.
Haematology transformed medicine when scientists could finally see blood cells clearly—it revealed that blood isn't just a red liquid but a complex tissue containing millions of specialized cells fighting infections and carrying oxygen.
Complete word intelligence in one call. Free tier — 50 lookups/day.