Mars (?), n. [L. Mars, gen. Martis, archaic Mavors, gen. Mavortis.]
1. Rom. Myth.
The god of war and husbandry.
2. Astron.
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.
3. Alchemy
The metallic element iron, the symbol of which ♂ was the same as that of the planet Mars.
[Archaic]
Chaucer.
Mars brown, a bright, somewhat yellowish, brown.
© Webster 1913.