retroadj.(时装或化妆)重新流行的n.减速火箭(=retrorocket);重新流行pref.表示“向后”、“回归”、“在后面”
retronymn.当某事物的原名不再适用的时候为它造的新词;如"第一次世界大战(World War I)";其在二战之前叫做"大战"(the Great War)
"retroversion of the uterus"
"the teacher translated Latin texts into English which he gave to his students for retroversion"