blood disease blood·di·sease uncommon noun 1. a disease or disorder of the blood Synonymsblood diseaseblood disorder Related words Broader terms blood dyscrasia Narrower terms cytopeniaacidemiaalkalemiaacanthocytosisagranulocytosisanalbuminemiaBanti's diseaseparasitemia WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.