Saturn

Sat·urn  (strn)

n.

1. Roman Mythology The god of agriculture.

2. The sixth planet from the sun and the second largest in the solar system, having a sidereal period of revolution about the sun of 29.5 years at a mean distance of about 1,426,000,000 kilometers (886,000,000 miles), a mean diameter of approximately 120,000 kilometers (74,000 miles), and a mass 95 times that of Earth.

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[Middle English Saturnus, from Old English, from Latin Sturnus, of Etruscan origin.]

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Saturn

Noun

1. the Roman god of agriculture and vegetation

2. the sixth planet from the sun, second largest in the solar system, around which revolve concentric rings

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Saturn  (strn)

The sixth planet from the Sun and the second largest, with a diameter about ten times that of Earth. Saturn is a gas giant that is almost as large as Jupiter in diameter but with only about 30 percent of Jupiter's mass. Its mainly gaseous composition together with its rapid axial rotation (it rotates once every 10.5 hours) cause a noticeable flattening at the poles and a prominent equatorial bulge. Saturn is encircled by a large, flat system of rings made up of rock fragments and tiny ice crystals, first observed by Galileo in 1610. The rings are believed to be unstable and therefore likely of recent origin; they may have been formed from bodies such as asteroids or moons that were shattered as they approached closer than the Roche limit. Saturn has numerous moons, of which the largest is Titan, the second largest moon in the solar system after Jupiter's Ganymede and larger than both Mercury and Pluto. See Table at solar system.

Thesaurus

Noun	1.	Saturn - a giant planet that is surrounded by three planar concentric rings of ice particles; the 6th planet from the sun solar system - the sun with the celestial bodies that revolve around it in its gravitational field
	2.	Saturn - (Roman mythology) god of agriculture and vegetation; counterpart of Greek Cronus; "Saturday is Saturn's Day" Roman mythology - the mythology of the ancient Romans