Quadruplex definition

kwädrəpleks, kwädro͝opleks

Fourfold.

adjective

Designating or of a former system of telegraphy in which four messages could be sent simultaneously over one wire, two in either direction.

adjective

The child's toy was quadruplex and had four moving parts.

adjective

Of or relating to a system in telegraphy by which four messages (two in each direction) can be sent on one wire simultaneously.

adjective

A quadruplex system.

noun

Other Word Forms

Singular:

quadruplex

Plural:

quadruplexes

From Latin quadruplex (“fourfold, quadruple"), from quattuor (“four") + plico (“fold")

From Wiktionary