Emily Dickinson Lexicon

SAT'URN, n. [L. Saturnus.]

1. In mythology, one of the oldest and principal deities, the son of Cœlus and Terra, [heaven and earth,] and the father of Jupiter. He answers to the Greek Χρονος, Chronus or Time.
2. In astronomy, one of the planets of the solar system, less in magnitude than Jupiter, but more remote from the sun. Its diameter is seventy nine thousand miles, its mean distance from the sun somewhat more than nine hundred millions of miles, and its year, or periodical revolution round the sun, nearly twenty nine years and a half.
3. In the old chimistry, an appellation given to lead.
4. In heraldry, the black color in blazoning the arms of sovereign princes.