<communications> A kind of telegraphy system developed by Thomas A. Edison in the 1870s combining diplex and duplex communications to support simultaneous transmission of two messages in each direction.

(01 May 2000)

Fourfold; folded or doubled twice.

<physics> Quadruplex system, a system by which four messages, two in each direction, may be sent simultaneously over the wire.

Origin: L, from quattuor four + plicare to fold.

(01 Mar 1998)

quadruple bucky, quadruple rhythm, quadruplet, quadruplex < Prev | Next > quadruplicate, quagga, quahaug, quail

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