Dictionary.com
Thesaurus.com

avian influenza

American  
[ey-vee-uhn in-floo-en-zuh] / ˈeɪ vi ən ˌɪn fluˈɛn zə /
Also avian flu

noun

Pathology
  1. a form of influenza that afflicts poultry and other birds, and that is transmissible to humans.

    An earlier outbreak of avian influenza had been reported in the Northeast last month.


Etymology

Origin of avian influenza

First recorded in 1965–70

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.

See Examples For:

An avian influenza outbreak had killed tens of millions of chickens and turkeys, and wholesale prices of Midwest large eggs hit $5.36 a dozen in late 2022.

From The Wall Street Journal Jul. 1, 2026

What has helped is that the threat of highly pathogenic avian influenza, or bird flu, has faded.

From MarketWatch Apr. 1, 2026

More than 50 skuas died in Antarctica during the summers of 2023 and 2024 after becoming infected with the highly pathogenic avian influenza virus H5N1.

From Science Daily Feb. 12, 2026

During the avian influenza outbreak last year, Cal-Maine’s biosecurity investment helped it avoid the severe flock losses that crippled many competitors.

From Barron's Jan. 6, 2026

Over time mutation lets animal diseases jump to people: avian influenza becomes human influenza, bovine rinderpest becomes human measles, horsepox becomes human smallpox.

From "1491" by Charles C. Mann

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training