RET'ROGRADE, a. [L. retrogradior; retro, backwards, and gradior, to go.] 1. Going or moving backwards.2. In astronomy, apparently moving backward and contrary to the succession of the signs, as a planet.3. Declining from a better to a worse state.RET'ROGRADE, v.i. [L. retrogradior; retro and gradior, to go.] To go or move backward.
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