Malvaceae mal·va·ceae uncommon noun 1. herbs and shrubs and some trees: mallows; cotton; okra Synonymsfamily Malvaceaemallow family Related words Broader terms dilleniid dicot family Parts Malvales Part of MalvamallowAbelmoschusAbutilonAlceagenus AlthaeaCallirhoeGossypium WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.