RBC uncommon noun 1. a mature blood cell that contains hemoglobin to carry oxygen to the bodily tissues; a biconcave disc that has no nucleus Synonymsred blood cellerythrocyte Related words Broader terms blood cell Narrower terms megalocytemegaloblastacanthocytemicrocytereticulocytesickle cellsiderocytespherocyte Part of hemoglobin WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
