词根词缀：flect-, flex-

【来源及含义】Latin: bend, bending; curve, curving; turn, turning

【相关词根词缀】 Inter-related cross references involving word units meaning "bend, curve, turn": diversi-; diverticul-; gyro-; meand-; -plex; streph-; stroph-; tors-; tropo-; verg-; vers-; volv-.

【同源单词】anteflect, anteflexion, baroreflex, biflex, chemoreflex, circumflex

词根词缀：retro-, retr-

【来源及含义】Latin: back, backward, backwards; behind

【同源单词】arrear, regurgitant menstruation, retroact, retroaction, retroactive, retroactively