Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
quadruplex is an adjective meaning "having four units or components". It carries one recorded sense.
having four units or components
“quadruple rhythm has four beats per measure”
“quadruplex wire”
Definitions, synonyms and semantic relations for quadruplex come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.