Retrograde 73079 217222697 2008-06-05T03:45:56Z 69.248.170.68 added menstruation to page {{Wiktionarypar|retrograde}} '''Retrograde''' is a retreating motion studied in multiple fields: *[[Retrograde signaling]], in neuroscience * Retrograde is a type of [[Permutation (music)|musical permutation]] * [[Retrograde and direct motion]], the movement of an astronomical object * [[Retrograde ejaculation]], in medicine * [[Retrograde menstruation]] occurs through the fallopian tubes, in medicine {{disambig}} [[nl:Retrograad]]