Pronunciation: (mul'tu-pleks"),[key] —adj. 1. having many parts or aspects: the multiplex problem of drug abuse. 2. manifold; multiple: the multiplex opportunities in high technology. 3. Telecommunications.of, pertaining to, or using equipment permitting the simultaneous transmission of two or more trains of signals or messages over a single channel.
—v.t. Telecommunications. a. to arrange (a circuit) for use by multiplex telegraphy.
b. to transmit (two or more signals or messages) by a multiplex system, circuit, or the like.
—v.i. to send several messages or signals simultaneously, as by multiplex telegraphy.
—n. 1. a multiplex electronics system.
2. (in map making) a stereoscopic device that makes it possible to view pairs of aerial photographs in three dimensions.
3. Also called mul'tiplex cin"ema, mul'tiplex the"ater. a group of two or more motion-picture theaters on the same site or in the same building, esp. a cluster of adjoining theaters.