erythrocyte /əˈɹɪθɹəˌsaɪt/ noun1 •A hemoglobin-containing cell, especially as found in humans but more generally present in the blood of most vertebrates, that is involved with the transport of oxygen; such cells are usually anucleate in humans and many other animals.The want of success of these names may be attributed to their awkwardness in sound or sense; "erythrocyte" seems the best of them, but is unfortunately four-syllabled. — 1901 formserythrocytes