red blood cell red blood • red-blooded · · · Info · Definitions · Synonyms · Characters · · red blood cell · · Text Common · · Latin · · Scripts 14 · · Length 3 · · Syllables Definitions · · · (noun) a mature blood cell that contains hemoglobin to carry oxygen to the bodily tissues; a biconcave disc that has no nucleus. Synonyms: red blood cell, RBC, erythrocyte. · · Noun Definition 1 Synonyms · · · rbc · · Synonym 1 erythrocyte · · Synonym 2 Characters · · space U+0020 b latin small letter b U+0062 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 l latin small letter l U+006C o latin small letter o U+006F r latin small letter r U+0072