Mars

[ mahrz ]

/ mɑrz /

SEE SYNONYMS FOR Mars ON THESAURUS.COM

noun

the ancient Roman god of war and agriculture, identified with the Greek god Ares.

Astronomy. the planet fourth in order from the sun, having a diameter of 4,222 miles (6,794 km), a mean distance from the sun of 141.6 million miles (227.9 million km), a period of revolution of 686.95 days, and two moons.

adjective

(often lowercase) of or relating to any of various pigments used in painting that are artificially made from an iron oxide base: Mars color; Mars pigments.

Words nearby Mars

Marryat, Marry in haste, repent at leisure, marry into, marry off, marry up, Mars, Marsala, Marsalis, Marsanne, Mars brown, Marseillaise

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for Mars

Methane could be produced by microbes on Mars, too, if they exist in enough numbers.
Methane on Mars: Life or Just Gas?|Matthew R. Francis|December 17, 2014|DAILY BEAST
However, their presence shows that Mars could have a more complex and evolving chemical story.
Methane on Mars: Life or Just Gas?|Matthew R. Francis|December 17, 2014|DAILY BEAST
There is an expanded place-name index with more than 150,000 entries, and separate undersea, Moon, and Mars features.
The Best Coffee Table Books of 2014|Robert Birnbaum|December 13, 2014|DAILY BEAST
Orion represents the first step towards human exploration of other planets, like Mars.
NASA Launches Orion in Fiery Spectacle|Jack Holmes, The Daily Beast Video|December 5, 2014|DAILY BEAST

What would it take to carry people to the Moon, or Mars, or an asteroid?
To Infinity and Beyond! NASA’s Orion Mission Blasts Off|Matthew R. Francis|December 4, 2014|DAILY BEAST
Is it not unreasonable to assert that Mars, or Venus, in a certain position, should produce adulteries?
Plotinos: Complete Works, v. 4|Plotinos (Plotinus)
If he didn't know Mercury, he'd put the earth second, and Mars third, instead of fourth!
A Martian Odyssey|Stanley Grauman Weinbaum
There were other dark markings visible, and the satellite presented the appearance of a miniature of Mars.
Astronomical Curiosities|J. Ellard Gore
Our Mars has intuitive perceptions not only upon military organization, but upon fortifications and other military subjects.
The Life of Albert Gallatin|Henry Adams
He mars the fairest work by showing me its skeleton, and reveals the mechanism of things while hiding the beautiful results.
The Works of Honor de Balzac|Honor de Balzac

British Dictionary definitions for Mars (1 of 2)

Mars¹

/ (mɑːz) /

noun

the Roman god of war, the father of Romulus and RemusGreek counterpart: Ares

British Dictionary definitions for Mars (2 of 2)

Mars²

/ (mɑːz) /

noun

Also called: the Red Planet the fourth planet from the sun, having a reddish-orange surface with numerous dark patches and two white polar caps. It has a thin atmosphere, mainly carbon dioxide, and low surface temperatures. Spacecraft encounters have revealed a history of volcanic activity and running surface water. The planet has two tiny satellites, Phobos and Deimos. Mean distance from sun: 228 million km; period of revolution around sun: 686.98 days; period of axial rotation: 24.6225 hours; diameter and mass: 53.2 and 10.7 per cent that of earth respectively

the alchemical name for iron

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Cultural definitions for Mars (1 of 2)

Mars

The Roman name of Ares, the Greek and Roman god of war.

notes for Mars

The fourth planet from the sun (the Earth is third) is named Mars, possibly because its red color is reminiscent of blood.

notes for Mars

The month of March is named after Mars.

Cultural definitions for Mars (2 of 2)

Mars

In astronomy, the fourth major planet from the sun. Mars was named after the Roman god of war because of its red color. (See solar system; See under “Mythology and Folklore.”)

notes for Mars

Smaller than the Earth, Mars has polar ice caps and a surface that includes red sands.

notes for Mars

The Viking space mission, which placed landers on the surface of Mars, did not discover any signs of life.

notes for Mars

Mars has been, and remains, the focus of space research by NASA. Voyages to Mars, including multiple landings, are scheduled through the first decade of the twenty-first century.

Scientific definitions for Mars

Mars

[ märz ]

The fourth planet from the Sun and the second 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.

单词	mars
释义	Mars [ mahrz ] / mɑrz / SEE SYNONYMS FOR Mars ON THESAURUS.COM noun the ancient Roman god of war and agriculture, identified with the Greek god Ares. Astronomy. the planet fourth in order from the sun, having a diameter of 4,222 miles (6,794 km), a mean distance from the sun of 141.6 million miles (227.9 million km), a period of revolution of 686.95 days, and two moons. adjective (often lowercase) of or relating to any of various pigments used in painting that are artificially made from an iron oxide base: Mars color; Mars pigments. Words nearby Mars Marryat, Marry in haste, repent at leisure, marry into, marry off, marry up, Mars, Marsala, Marsalis, Marsanne, Mars brown, Marseillaise Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for Mars Methane could be produced by microbes on Mars, too, if they exist in enough numbers. Methane on Mars: Life or Just Gas?\|Matthew R. Francis\|December 17, 2014\|DAILY BEAST However, their presence shows that Mars could have a more complex and evolving chemical story. Methane on Mars: Life or Just Gas?\|Matthew R. Francis\|December 17, 2014\|DAILY BEAST There is an expanded place-name index with more than 150,000 entries, and separate undersea, Moon, and Mars features. The Best Coffee Table Books of 2014\|Robert Birnbaum\|December 13, 2014\|DAILY BEAST Orion represents the first step towards human exploration of other planets, like Mars. NASA Launches Orion in Fiery Spectacle\|Jack Holmes, The Daily Beast Video\|December 5, 2014\|DAILY BEAST What would it take to carry people to the Moon, or Mars, or an asteroid? To Infinity and Beyond! NASA’s Orion Mission Blasts Off\|Matthew R. Francis\|December 4, 2014\|DAILY BEAST Is it not unreasonable to assert that Mars, or Venus, in a certain position, should produce adulteries? Plotinos: Complete Works, v. 4\|Plotinos (Plotinus) If he didn't know Mercury, he'd put the earth second, and Mars third, instead of fourth! A Martian Odyssey\|Stanley Grauman Weinbaum There were other dark markings visible, and the satellite presented the appearance of a miniature of Mars. Astronomical Curiosities\|J. Ellard Gore Our Mars has intuitive perceptions not only upon military organization, but upon fortifications and other military subjects. The Life of Albert Gallatin\|Henry Adams He mars the fairest work by showing me its skeleton, and reveals the mechanism of things while hiding the beautiful results. The Works of Honor de Balzac\|Honor de Balzac British Dictionary definitions for Mars (1 of 2) Mars¹ / (mɑːz) / noun the Roman god of war, the father of Romulus and RemusGreek counterpart: Ares British Dictionary definitions for Mars (2 of 2) Mars² / (mɑːz) / noun Also called: the Red Planet the fourth planet from the sun, having a reddish-orange surface with numerous dark patches and two white polar caps. It has a thin atmosphere, mainly carbon dioxide, and low surface temperatures. Spacecraft encounters have revealed a history of volcanic activity and running surface water. The planet has two tiny satellites, Phobos and Deimos. Mean distance from sun: 228 million km; period of revolution around sun: 686.98 days; period of axial rotation: 24.6225 hours; diameter and mass: 53.2 and 10.7 per cent that of earth respectively the alchemical name for iron Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Content related to Mars Why Is Planet Mars Named “Mars”?Mars, the fourth planet from the sun, is our neighbor, and it has long captivated the human mind and spirit. But, how did Mars it get its name? READ MORE Cultural definitions for Mars (1 of 2) Mars The Roman name of Ares, the Greek and Roman god of war. notes for Mars The fourth planet from the sun (the Earth is third) is named Mars, possibly because its red color is reminiscent of blood. notes for Mars The month of March is named after Mars. Cultural definitions for Mars (2 of 2) Mars In astronomy, the fourth major planet from the sun. Mars was named after the Roman god of war because of its red color. (See solar system; See under “Mythology and Folklore.”) notes for Mars Smaller than the Earth, Mars has polar ice caps and a surface that includes red sands. notes for Mars The Viking space mission, which placed landers on the surface of Mars, did not discover any signs of life. notes for Mars Mars has been, and remains, the focus of space research by NASA. Voyages to Mars, including multiple landings, are scheduled through the first decade of the twenty-first century. The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. Scientific definitions for Mars Mars [ märz ] The fourth planet from the Sun and the second 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. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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Mars

noun

adjective

Words nearby Mars

Example sentences from the Web for Mars

British Dictionary definitions for Mars (1 of 2)

noun

British Dictionary definitions for Mars (2 of 2)

noun

Content related to Mars

Cultural definitions for Mars (1 of 2)

notes for Mars

notes for Mars

Cultural definitions for Mars (2 of 2)

notes for Mars

notes for Mars

notes for Mars

Scientific definitions for Mars