<p><strong>Noun</strong></p><ul><li>the ancient Roman god of war and agriculture, identified with the Greek god Ares.</li><li>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.</li></ul><p><strong>End of Response</strong></p>