mangrove family mang·ro·ve·family uncommon noun 1. trees and shrubs that usually form dense jungles along tropical seacoasts SynonymsRhizophoraceaefamily Rhizophoraceaemangrove family Related words Broader terms dicot family Parts Myrtales Part of Rhizophora WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.