simplex

C2+ Topic:Space, Position & Direction

US /ˈsɪmplɛks/ UK /ˈsɪmplɛks/ See IPA manual

adj noun

Meanings

1

adj
consisting of or permitting only one part, direction, or operation

The radio link operated in simplex mode, one way at a time.

Thesaurus

Synonyms

1 adj · consisting of or permitting... single simple unitaryone-wayuncompounded

Opposites

duplex complex compoundmultiplex

Word family

Related forms simple simplicity duplexmultiplex

Etymology

From Latin simplex ('single, simple'), from sim- ('one, together') plus -plex ('-fold'), from plicare ('to fold').

simplex Latin plicare Latin

View etymology graph ->

Topics

Space, Position & Direction

# simplex

**Type:** Word
**Level:** C2+
**Part of speech:** adj, noun
**IPA (US):** ˈsɪmplɛks
**IPA (UK):** ˈsɪmplɛks

## Meanings
1. consisting of or permitting only one part, direction, or operation

## Examples
- The radio link operated in simplex mode, one way at a time.

## Synonyms
- single
- simple
- unitary
- one-way
- uncompounded

## Antonyms
- duplex
- complex
- compound
- multiplex

## Related Forms
- simple
- simplicity
- duplex
- multiplex

## Roots and Affixes
- Root: simplex
- Root: plicare

## Etymology
From Latin simplex ('single, simple'), from sim- ('one, together') plus -plex ('-fold'), from plicare ('to fold').

## AI Etymology
Simplex comes from Latin simplex ('single, simple'), from sim- ('one, together') plus -plex ('-fold'), from plicare ('to fold'). The historical chain includes Latin simplex and Latin plicare. The quoted older senses, "single, simple", "one, together", "-fold", and "to fold", supply the semantic anchors for simplex. The formation is best read as borrowed: the word simplex carries its older form-history into a compact English lexical shape. In present English it is used as a adj, "consisting of or permitting only one part, direction, or operation". Related English forms include simple, simplicity, duplex, and multiplex. The result is a adj and noun whose etymology preserves both the older form and the later English specialization.

## Topics
- Space, Position & Direction

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