Dictionary.com
Thesaurus.com

amyloidosis

American  
[am-uh-loi-doh-sis] / ˌæm ə lɔɪˈdoʊ sɪs /

noun

Pathology.

plural

amyloidoses
  1. a deposit of amyloid in tissues or organs.

  2. the diseased state resulting from this deposit.


amyloidosis British  
/ ˌæmɪlɔɪˈdəʊsɪs /

noun

  1. pathol the deposition of amyloid in various tissues of the body, as occurs in certain chronic infections

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of amyloidosis

First recorded in 1895–1900; amyloid + -osis

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Near the end of his life, Pistono was struggling with a medical condition called AL amyloidosis, which weakened his heart, forcing him to cut back on some of his more-strenuous activities.

From The Wall Street Journal • Oct. 17, 2025

The brand's former art director revealed least year he had amyloidosis, a rare incurable condition that affects the body's vital organs and nerves.

From BBC • Jan. 13, 2025

GalNAc conjugate therapies, which attach siRNA molecules to the ligand to deliver therapies inside cells, are already on the market for conditions such as hereditary transthyretin-mediated amyloidosis and atherosclerotic cardiovascular disease.

From Science Daily • Mar. 14, 2024

The cause was complications from amyloidosis, a disease that attacks the body’s tissues and organs, according to New Japan Pro-Wrestling, of which he was the founding president.

From Washington Post • Oct. 4, 2022

At Mount Sinai, he discovered that he suffered from cardiac amyloidosis, in which protein builds up in the heart, reducing its ability to pump blood.

From New York Times • Aug. 12, 2022