What is retinal rod?

  • (noun): Visual receptor cell sensitive to dim light.
    Synonyms: rod, rod cell

Famous quotes containing the word rod:

    Alas,

    For the tireless heart within the little
    Lady with rod that made them rise
    From their noon apple-dreams, and scuttle
    Goose-fashion under the skies!
    John Crowe Ransom (1888–1974)