Mars Definition–noun | 1. | the ancient Roman god of war and agriculture, identified with the Greek god Ares. | | 2. | Astronomy. the planet fourth in order from the sun, having a diameter of 4222 miles (6794 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 | 3. | (often lowercase ) of or pertaining to any of various pigments used in painting that are artificially made from an iron oxide base: Mars color; Mars pigments. | |
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Related topics from BritannicaMars
ancient Roman deity, in importance second only to Jupiter. Little is known of his original character, and that character (chiefly from the cult at Rome) is variously interpreted. It is clear that by ...
Mars
fourth planet in the solar system in order of distance from the Sun and seventh in size and mass. It is a conspicuous, sometimes quite bright, reddish object in the night sky. Mars is designated by ...
Naryan-Mar
inland port and capital of the Nenets autonomous okrug (district), Arkhangelsk oblast (region), northwestern Russia. It lies on the Pechora River 68 miles (110 km) from its mouth on the Arctic Ocean. ...
Mar-pa
one of the Tibetan translators of Indian Vajrayana (or Tantric) Buddhist texts, a significant figure in the revival of Buddhism in Tibet in the 11th century.Mar Chiquita, Lake
saline lake at the southern edge of the Gran Chaco in northeastern Cordoba provincia (province), north-central Argentina. It is about 45 miles (70 km) long and 15 miles (24 km) wide with an area of ...
Mars Pathfinder
robotic U.S. spacecraft launched to Mars to demonstrate a new way to land a spacecraft on the planet's surface and the operation of an independent robotic rover. Developed by NASA as part of a ...
Mars, canals of
apparent systems of long, straight linear markings on the surface of Mars that are now known to be illusions caused by the chance alignment of craters and other natural surface features seen in ...
Mar, Serra do
(Portuguese: "Mountain Range of the Sea"), great escarpment on the eastern margins of the Brazilian Highlands, which descend abruptly to the Atlantic coast. It extends for about 1,600 miles (2,600 ...
Vina del Mar
city and Pacific Ocean resort, central Chile, just northeast of Valparaiso. A large municipal gaming casino, beaches, and a pleasant summer climate attract substantial numbers of domestic and foreign ...
Mars Global Surveyor
robotic U.S. spacecraft launched to the planet Mars to carry out long-term study from orbit of the entire surface, the atmosphere, and aspects of the interior. High-resolution images returned from ...
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