multiplex

1 of 4

adjective

mul·​ti·​plex ˈməl-tə-ˌpleks 

1

: many, multiple

2

: being or relating to a system of transmitting several messages or signals simultaneously on the same circuit or channel

multiplex

2 of 4

verb

multiplexed; multiplexing; multiplexes

transitive verb

: to send (messages or signals) by a multiplex system

intransitive verb

: to multiplex messages or signals

multiplexer noun

or less commonly multiplexor

ˈməl-tə-ˌplek-sər 

multiplex

3 of 4

noun (1)

: a complex that houses several movie theaters

multiplexer

4 of 4

noun (2)

mul·​ti·​plex·​er

variants or multiplexor

-sə(r) 

plural -s

: a device for multiplex transmission of signals

Synonyms of multiplex

Adjective

• many
• numerous
• multiple

Examples of multiplex in a Sentence

Adjective

would sometimes experience multiplex moods in the course of a single day

Recent Examples on the Web

Adjective

Watching their metronomic thriller does more to suggest the arrival of a hyper-sexualized answer to the Coen brothers than the progeny of William Gibson or the progenitors of multiplex psychedelia. — Nick Newman, IndieWire, 1 June 2026

The multiplex genome editing capability, hundreds of simultaneous edits at 90% accuracy, is relevant to agricultural biotech, gene therapy, and conservation genetics. — Jon Markman, Forbes.com, 9 Apr. 2026

Verb

The base die is a logic chip designed to multiplex the data—pack it into the limited number of wires that can fit across the millimeter-scale gap to the GPU. — IEEE Spectrum, 14 Jan. 2026

Perturb-seq provides genomic scale and resolution, allowing both multiplexed intervention in a genome as well as analysis of non-natural configurations for the first time. — John Stuelpnagel, Fortune, 13 Jan. 2020

Noun

In the mid-2020s, that’s the multiplex—with Spider-Man swinging across your BMW screen, too. — Nick Lichtenberg, Fortune, 30 July 2026

The rest are retrofits like my local theater — ordinary multiplex auditoriums Imax began converting in the mid-aughts, giving them somewhat bigger screens, upgraded sound, and hefty surcharges. — Lane Brown, Vulture, 25 July 2026

Word History

Etymology

Adjective

Latin

and Noun (2)

First Known Use

Adjective

1606, in the meaning defined at sense 1

Verb

1885, in the meaning defined at transitive sense

Noun (1)

1982, in the meaning defined above

Rhymes for multiplex

• atriplex
• biconvex
• bottlenecks
• circumflex
• intersex
• unisex
• annex
• annexe
• apex
• aztecs
• carex
• codecs

Kids Definition

multiplex

1 of 2 adjective

mul·​ti·​plex ˈməl-tə-ˌpleks 

1

: multiple entry 1, many

2

: being or relating to a system of transmitting several messages simultaneously on the same circuit or channel

multiplex

2 of 2 noun

: a complex that houses several movie theaters

Medical Definition

multiplex

see arthrogryposis multiplex congenita, mononeuritis multiplex, paramyoclonus multiplex