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 But in Cognito’s trial, researchers did not find a reduction in amyloid plaques in participants’ brain scans. Emily Mullin, WIRED, 6 Mar. 2024 All three of the drugs are monoclonal antibodies that work by targeting amyloid in the brain, considered a hallmark of Alzheimer’s disease. Berkeley Lovelace Jr., NBC News, 8 Mar. 2024 But in follow-up scans five months later, their brains were teeming with an abnormal protein called beta amyloid that is associated with Alzheimer’s disease. Dave Philipps, New York Times, 7 Mar. 2024 However, the Cognito trial used a type of brain imaging called positron emission tomography, or PET, which detects dense amyloid plaques. Emily Mullin, WIRED, 6 Mar. 2024 Indeed, exposing mice to a light flickering at 40 hertz helped cut down amyloid plaques, a hallmark of the disease, by almost half. William A. Haseltine, Forbes, 29 Feb. 2024 Matthew Schrag, a neurologist at Vanderbilt University Medical Center, continues to be skeptical of the focus on amyloid to treat Alzheimer’s. David Ovalle, Washington Post, 8 Mar. 2024 The accumulation of amyloid has long been the leading theory to explain Alzheimer’s. Emily Mullin, WIRED, 6 Mar. 2024 That could mean a blood test to indicate the presence of amyloid. Paula Span, New York Times, 4 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'amyloid.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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 23 Apr. 2024.

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

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