astrocyte

American  

[as-truh-sahyt] / ˈæs trəˌsaɪt /

noun

Cell Biology.

1. a star-shaped neuroglial cell of ectodermal origin.

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astrocyte British  

/ ˈæstrəʊˌsaɪt /

noun

1. any of the star-shaped cells in the tissue supporting the brain and spinal cord (neuroglia)

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astrocyte Scientific  

/ ăs′trə-sīt′ /

1. A star-shaped cell, especially one of the glial cells that support the tissue of the central nervous system.

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Other Word Forms

• astrocytic
  adjective

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Etymology

Origin of astrocyte

First recorded in 1895–1900; astro- + -cyte

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Example Sentences

See Examples For:

astrocyte

The team found that increasing levels of Sox9, a protein that plays a major role in regulating astrocyte activity during aging, significantly improved these cells' ability to remove amyloid plaques.

From Science Daily ● May 2, 2026

"If we remove astrocyte CCN1, the microglia eat, but they don't digest. They call in more microglia, which also eat but don't digest," Burda said.

From Science Daily ● Feb. 13, 2026

Their attention centered on Sox9, a protein that influences a wide network of genes involved in astrocyte aging.

From Science Daily ● Nov. 23, 2025

The findings, reported in Nature Neuroscience, suggest that strengthening astrocyte activity could one day help slow cognitive decline linked to neurodegenerative disorders.

From Science Daily ● Nov. 23, 2025

The researchers noticed that such a stimulation induced a robust increase in the astrocyte calcium, which was followed by an epileptic neuronal hyperactivity episode.

From Science Daily ● Apr. 19, 2024

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