It takes 687 days for Mars to orbit the Sun, which is 1.88 Earth years. 1.88 x 1.88 = 3.5378 which has a cube root of 1.5237 meaning that on average Mars is 1.5237 times the Earth's average distance from the Sun.
boulder definition: The definition of a boulder is a large, smooth rock. (noun) When you build a retaining wall and use a large rock in the wall, this rock is an example of a boulder. A rock that has been detached from the earth by erosion or for ot...
Chambers 20th Century Dictionary(0.00 / 0 votes)Rate this definition: 1  Rock. rok, n. a large mass of stone: (geol.) a natural deposit of sand, earth, or clay: that which has the firmness of a rock, foundation, support, defence: (Scot.) a distaff: a hard sweetmeat.âv.t. to throw stones at.âns.