A severe form of thalassemia which is a blood disorder involving lower-than-normal amounts of oxygen-carrying hemoglobin.
थैलेसेमिया का गंभीर रूप
English Usage: "The child was diagnosed with thalassaemia major at a young age."
Hindi Usage: "बच्चे को छोटी उम्र में थैलेसेमिया का गंभीर रूप रोग निदान किया गया।"