Papaveraceae pa·pa·ve·raceae uncommon noun 1. herbs or shrubs having milky and often colored juices and capsular fruits Synonymsfamily Papaveraceaepoppy family Related words Broader terms dilleniid dicot family Parts Rhoeadales Part of poppyPapavergenus Argemonegenus BocconiaChelidoniumCorydalisDendromeconEschscholtzia WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.