rod cell rod-caught • rod-cone theory · · · Info · Definitions · Synonyms · Characters · · rod cell · · Text Common · · Latin · · Scripts 8 · · Length 2 · · Syllables Definitions · · · (noun) a visual receptor cell that is sensitive to dim light. Synonyms: rod, rod cell, retinal rod. · · Noun Definition 1 Synonyms · · · rod · · Synonym 1 retinal rod · · Synonym 2 Characters · · space U+0020 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