quadplex From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsnounA building divided into four separate residences or commercial premises Related wordsSynonymsquintuplexfourplextriplexduplexquadruplexquadraplexmultiplexplexquadruplexingmultifamilyquadriporticoquadripolequadropolymultidwellingmultiduplextriplexity References Wiktionary — quadplex Wikipedia — quadplex