# plexus

/ˈpɫɛksəs/ (US) · /plˈɛksəs/ (UK) · CEFR C1 · Noun

Source: https://englishreference.com/word/plexus
Updated: 2026-05-26

## Definition

a network of nerves, blood vessels, or fibers that are joined together. In math, it can also describe a complex shape made of many parts.

For teachers: a network of nerves, blood vessels, or fibers. In a mathematical context, it refers to a complex geometric figure or a set of interconnected elements.

## Examples

- The doctor examined the nerve plexus in the patient's neck.
- The cervical plexus is a network of nerves that provides sensation to the skin of the neck and shoulders.
- The intricate plexus of veins and arteries in the brain requires a highly specialized surgical approach to ensure that blood flow remains uninterrupted during the procedure.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.