chlor- combining form variants: or chloro- Trending Now: More Trending: lowlife kakistocracy slimeball salacious oligarch SEE ALL See What's Trending Now See More Trending Words What's Trending Now More Trending Words lowlife 'a person of low moral character' kakistocracy 'government by the worst people' slimeball 'a morally repulsive or odious person' salacious 'arousing or appealing to sexual desire' oligarch 'government in which a small group exercises control' SEE ALL Time Traveler! Explore the year a word first appeared Definition of chlor- 1 : green chlorine chlorosis 2 : chlorine : containing chlorine chloroprene Origin and Etymology of chlor- New Latin, from Greek, from chlōros greenish yellow — more at yellow Seen and Heard What made you want to look up chlor-? Please tell us where you read or heard it (including the quote, if possible). show hide