# extracellular

/ˌɛkstɹəˈsɛɫjəɫɝ/ (US) · /ˌɛkstɹəsˈɛljʊlɐ/ (UK) · CEFR C1 · Adjective

Source: https://englishreference.com/word/extracellular
Updated: 2026-05-09

## Definition

located or happening outside of a cell. It describes things in the space between cells in a living body.

For teachers: situated or occurring outside a cell or the cells of an organism. Often describes fluids, matrices, or signals that exist in the space surrounding cellular structures.

## Examples

- The body uses extracellular fluid to transport nutrients.
- Researchers are studying how extracellular proteins help cells communicate with each other in healthy tissue.
- The extracellular matrix provides essential structural support to surrounding cells, while also regulating various cellular functions through complex biochemical signaling pathways.

## Usage notes

- Typically used in technical or scientific contexts; often precedes the noun it modifies.

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