Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Roman Mythology The god of war.
  • n. 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).

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • proper n. The Roman god of war.
  • proper n. The fourth planet in the solar system. Symbol: ♂
  • proper n. The Mars Bar, a brand of chocolate bar with caramel and nougat filling.

from the GNU version of the Collaborative International Dictionary of English

  • proper n. The god of war and husbandry.
  • proper n. One of the planets of the solar system, the fourth in order from the sun, or the next beyond the earth, having a diameter of about 4,200 miles, a period of 687 days, and a mean distance of 141,000,000 miles. It is conspicuous for the redness of its light.
  • proper n. The metallic element iron, the symbol of which ♂ was the same as that of the planet Mars.

from The Century Dictionary and Cyclopedia

  • n. A Latin deity, identified at an early period by the Romans with the Greek Ares, with whom he had originally no connection.
  • n. The planet next outside the earth in the solar system.
  • n. In old chemistry, iron.
  • n. In heraldry, the tincture red, when blazoning is done by the planets: see blazon.
  • n.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. (Roman mythology) Roman god of war and agriculture; father of Romulus and Remus; counterpart of Greek Ares
  • n. 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

Etymologies

Middle English, from Latin Mārs.
(American Heritage® Dictionary of the English Language, Fourth Edition)
After Frank C. Mars, who founded the company that produces these chocolate bars. (Wiktionary)

Examples

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