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Definition of Quadruplex
1. Adjective. Having four units or components. "Quadruplex wire" 
Definition of Quadruplex
1. a. Fourfold; folded or doubled twice.
Medical Definition of Quadruplex
1. 
Fourfold; folded or doubled twice.
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1. Adjective. Having four units or components. "Quadruplex wire" 
1. a. Fourfold; folded or doubled twice.
1. 
Fourfold; folded or doubled twice.