amyloid

noun

am·​y·​loid ˈa-mə-ˌlȯid How to pronounce amyloid (audio)
: a waxy translucent substance consisting primarily of protein that is deposited in some animal organs and tissues under abnormal conditions (such as Alzheimer's disease) compare beta-amyloid
amyloid adjective

Examples of amyloid in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
These drugs work by removing amyloid plaques—unusual clumps of proteins that build up in the brain and block cell communication. Team Verywell Health, Verywell Health, 24 Jan. 2025 Regular aerobic exercise was linked to a reduction in markers in the brains of in rats that associated with the onset of Alzheimer's, including amyloid plaques, according to a new paper in the journal Brain Research. Michael Gfoeller and David H. Rundell, Newsweek, 16 Jan. 2025 Sure enough, after the impacts from the piston, the HSV-1 cells became active and began causing their usual havoc – sparking inflammation, fostering the growth of tangle-causing amyloid plaques, killing off neurons, and leading to a runaway development of glial cells in a process called gliosis. Michael Franco, New Atlas, 9 Jan. 2025 Similar processes might underlie the development of protein aggregates tied to other neurodegenerative disorders, such as the amyloid fibrils found in the brains of people with Alzheimer’s disease or the synuclein protein deposits implicated in Parkinson’s disease. Trevor Grandpre, Scientific American, 14 Aug. 2024 See all Example Sentences for amyloid 

Word History

First Known Use

1866, in the meaning defined above

Time Traveler
The first known use of amyloid was in 1866

Dictionary Entries Near amyloid

Cite this Entry

“Amyloid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/amyloid. Accessed 1 Feb. 2025.

Medical Definition

amyloid

noun
am·​y·​loid
ˈam-ə-ˌlȯid
1
: a nonnitrogenous starchy food
2
: a waxy translucent substance consisting primarily of protein that is deposited in some animal organs and tissue under abnormal conditions (as in Alzheimer's disease) see beta-amyloid
amyloid adjective

More from Merriam-Webster on amyloid

Last Updated: - Updated example sentences
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