quadruplex ( synonym found)
Definition of quadruplex:

(adj) : having four components; of or relating to a system in telegraphy by which four messages can be sent on one wire simultaneously
"the child's toy was quadruplex and had four moving parts."
Definition of quadruplex:

(adj) : having four components; of or relating to a system in telegraphy by which four messages can be sent on one wire simultaneously
"the child's toy was quadruplex and had four moving parts."
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