Onagraceae onag·ra·ceae uncommon noun 1. a large and widely distributed family of plants of the order Myrtales Synonymsfamily Onagraceaeevening-primrose family Related words Broader terms rosid dicot family Parts Myrtales Part of CircaeaEpilobiumgenus FuchsiaOenotheraevening primrose WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
