noun

• (astronomy) The sixth planet of the solar system, known for its large rings, and until recent times the furthest known; represented in astronomy and astrology by ♄.
• (Roman mythology) The god of fertility and agriculture, equivalent to the Greek Kronos.
• (heraldry, rare) Sable (black), in the postmedieval practice of blazoning the tinctures in the arms of certain sovereign people and places as planets.
• (obsolete, alchemy, chemistry) Lead (the metal).
• The Southeast Asian butterfly Zeuxidia amethystus, family Nymphalidae.