avascular necrosis


: necrosis of bone tissue due to impaired or disrupted blood supply (as from traumatic injury or disease)

Examples of avascular necrosis in a Sentence

Recent Examples on the Web The 41-year-old Puerto Rico native revealed over the weekend that she was diagnosed with avascular necrosis — a condition that results in the death of bone tissue after a loss of blood supply — following treatment for cancer. Joey Nolfi, EW.com, 7 Nov. 2022 Portillo was afraid of catching the coronavirus, given his preexisting health conditions — HIV and avascular necrosis, a disease that has degraded his bone tissue — and isolated himself for months. Washington Post, 23 July 2021 Eddie had been diagnosed with avascular necrosis in his hip. Washington Post, 6 Oct. 2020

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'avascular necrosis.' 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

1953, in the meaning defined above

Time Traveler
The first known use of avascular necrosis was in 1953

Dictionary Entries Near avascular necrosis

Cite this Entry

“Avascular necrosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/avascular%20necrosis. Accessed 6 Dec. 2023.

Medical Definition

avascular necrosis

: necrosis of bone tissue due to impaired or disrupted blood supply (as that caused by traumatic injury or disease) and marked by severe pain in the affected region and by weakened bone that may flatten and collapse

called also aseptic necrosis, osteonecrosis

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!