Sat·urn /ˈsætɚ/
 土星


 Sa·turn n.
 1. Roman Myth. One of the elder and principal deities, the son of Coelus and Terra (Heaven and Earth), and the father of Jupiter. The corresponding Greek divinity was Kro`nos, later CHro`nos, Time.
 2. Astron. One of the planets of the solar system, next in magnitude to Jupiter, but more remote from the sun. Its diameter is seventy thousand miles, its mean distance from the sun nearly eight hundred and eighty millions of miles, and its year, or periodical revolution round the sun, nearly twenty-nine years and a half. It is surrounded by a remarkable system of rings, and has eight satellites.
 3. Alchem. The metal lead. [Archaic]

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 Saturn
      n 1: a giant planet which is surrounded by three planar
           concentric rings of ice particles; 6th planet from the
           sun
      2: (Roman mythology) god of agriculture and vegetation;
         counterpart of Greek Cronus; "Saturday is Saturn's Day"