#1 retrograde v. move backward in an orbit, of celestial bodies. wn
#2 retrograde a. moving from east to west on the celestial sphere; or--for planets--around the sun in a direction opposite to that of the Earth. wn
#3 retrograde v. move in a direction contrary to the usual one; "retrograding planets". wn
#4 retrograde a. of amnesia; affecting time immediately preceding trauma. wn
#5 retrograde v. [retreat] move back; "The glacier retrogrades". wn
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