astrocyte

noun
as·tro·cyte | \ˈas-trə-ˌsīt \

Definition of astrocyte 

: a large star-shaped cell of the glia

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Other Words from astrocyte

astrocytic \ˌas-trə-ˈsi-tik \ adjective

Examples of astrocyte in a Sentence

Recent Examples on the Web

Cajal would never have seen such wildly different forms of astrocytes, a type of glial cell, in his microscope. Sharon Begley, STAT, "In ‘Beautiful Brain,’ the secrets of neurons emerge in Nobel-winning scientist’s ink and pencil drawings," 3 May 2018 Within two to 12 weeks, the organoids were sprouting additional neurons, including ones found in very specific regions of the human cortex; glia cells including astrocytes; and neural stem cells. Sharon Begley, STAT, "Miniature human brains grow for months when implanted in mice skulls," 16 Apr. 2018 Instead, it's made by a type of cell called an astrocyte. John Timmer, Ars Technica, "New studies zero in on roots of depression and why ketamine reverses it," 17 Feb. 2018 The spread of the disease is really a consequence of how cells around the nerves (astrocytes and microglial cells) respond to the dying motor neurons. James Hamblin, The Atlantic, "A New Understanding of Inflammation in the Spine," 15 Sep. 2017 The study revolves around two types of glial cells: astrocytes and microglial cells, according to New Scientist. Michael Harthorne, Fox News, "Lack of sleep may cause brain to 'eat' parts of itself," 30 May 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'astrocyte.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of astrocyte

1896, in the meaning defined above

History and Etymology for astrocyte

International Scientific Vocabulary

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Time Traveler for astrocyte

The first known use of astrocyte was in 1896

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More Definitions for astrocyte

astrocyte

noun
as·tro·cyte | \ˈas-trə-ˌsīt \

Medical Definition of astrocyte 

: a star-shaped cell especially : any comparatively large much-branched glial cell Glia outnumber neurons in the human brain by a factor of 10 to one, and astrocytes are the most abundant type of glial cell. — Tina Hesman Saey, Science News, 2 Aug. 2008 Astrocytes come in two main forms: fibrous astrocytes are found in the white matter and protoplasmic astrocytes in the gray matter. — Harold Kimelberg and Michael Norenberg, Scientific American, April 1989

Other Words from astrocyte

astrocytic \ˌas-trə-ˈsit-ik \ adjective
All gliomas, particularly the astrocytic neoplasms, are histologically, genetically, and thus therapeutically heterogeneous. — Lisa M. DeAngelis, The New England Journal of Medicine, 11 Jan. 2001

More from Merriam-Webster on astrocyte

Britannica.com: Encyclopedia article about astrocyte

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