thalassaemia tha·las·sae·mia uncommon noun 1. an inherited form of anemia caused by faulty synthesis of hemoglobin SynonymsthalassemiaMediterranean anemiaMediterranean anaemia Related words Word family thalassaemia major Broader terms hypochromic anemiamonogenic disorder Narrower terms Cooley's anemia WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.