Definition of "prograde" []

• Describing motion in a forward direction, especially with respect to other bodies in the same system (adjective)
• Describing a metamorphic change resulting from a higher pressure or temperature (adjective)

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• "This is called retrograde motion; the direction in which the Earth turns is called prograde."
• "This is called a prograde orbit, and the Earth has the most inclined orbit with regard to the equator of the Sun, of 7.15 degrees."
• "I'm thinking of little stones, cosmic sand, in prograde orbits around Saturn so that they hit with low relative speed."