vena cava vena canaliculi cochleae • vena centrales retinae · · · Info · Definitions · Characters · · vena cava · · Text Common · · Latin · · Scripts 9 · · Length 4 · · Syllables Definitions · · · (noun) either of two large veins that return oxygen-depleted blood to the right atrium of the heart. Synonyms: vena cava. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 n latin small letter n U+006E v latin small letter v U+0076