Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Medical Dictionary

amyloid beta

noun

Medical Definition of amyloid beta

  1. :  beta-amyloid <Small amounts of amyloid beta are generated as an ordinary metabolic byproduct and are believed to do no harm, but larger amounts seem to be tied to Alzheimer's.—January W. Payne, U.S. News & World Report, 1 Aug. 2009> <In Alzheimer's patients, the amyloid beta protein somehow goes off track and clumps together in sticky plaques that destroy healthy brain tissue.—Nancy McVicar, The Sun-Sentinel (Fort Lauderdale, Florida), 19 Feb. 2002> <The treatment targets the buildup of lumps of protein fragments called amyloid beta peptides, which is the dominant theory of the cause of Alzheimer's.—Victoria Colliver, The San Francisco Chronicle, 8 May 2009>



Variants of amyloid beta

or

amyloid beta protein

or

amyloid beta peptide


Seen and Heard

What made you want to look up amyloid beta? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to depart quickly

Get Word of the Day daily email!