Mars

Mars  (märz)

n.

1. Roman Mythology The god of war.

2. The fourth planet from the sun, having a sidereal period of revolution about the sun of 687 days at a mean distance of 227.9 million kilometers (141.6 million miles) and a mean diameter of approximately 6,794 kilometers (4,222 miles).

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[Middle English, from Latin Mrs.]

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Mars

Noun

1. the Roman god of war

2. the fourth planet from the sun

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Mars  (märz)

The fourth planet from the Sun and the third smallest in the solar system, with a diameter about half that of Earth. Mars is the last of the terrestrial or inner planets and has notable similarities to Earth, including polar ice caps and a tilted axis that gives it seasons. However, it is significantly less dense than Earth and has no magnetic field, suggesting that it lacks a metallic core, and its atmosphere, made up mostly of carbon dioxide, is much thinner than Earth's. Mars has no surface water apart from a layer of permanent ice that underlies the seasonally changing caps of frozen carbon dioxide at its poles; there is, however, clear evidence of earlier water flows in the form of channels, outwashes, and canyons. Other surface features include numerous craters, especially in the southern hemisphere, along with very large volcanoes and extensive windblown dunes. Mar's reddish color is due to the abundance of hematite in its surface rocks. Its two small, irregular moons, Phobos and Deimos, may be asteroids captured earlier by gravitational attraction. See Table at solar system.

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Mars

See also astronomy;cosmology;planets.

areography

Astronomy. a topographical description of the planet Mars.

areology

Astronomy. the observation and study of the planet Mars. — areologist, n. — areologic, areological, adj.

Thesaurus

Noun	1.	Mars - a small reddish planet that is the 4th from the sun and is periodically visible to the naked eye; minerals rich in iron cover its surface and are responsible for its characteristic color; "Mars has two satellites" Red Planet solar system - the sun with the celestial bodies that revolve around it in its gravitational field
	2.	Mars - (Roman mythology) Roman god of war and agriculture; father of Romulus and Remus; counterpart of Greek Ares Roman mythology - the mythology of the ancient Romans

Translations

Mars [mɑːz] n → Marte m

Mars [mɑːz] n (= planet) → Mars f

Mars [mɑːz] n → Mars m

Mars [mɑːz] n (planet) → Marte m