Word.ws English Dictionary

H5N1

H5N1 noun: a strain of avian influenza, often lethal in humans but not transmissible between humans.

h5n1: a strain of avian influenza, often lethal in humans but not transmissible between humans
Image: Burschik, CC BY-SA 3.0, via Wikimedia Commons

Noun

H5N1 (uncountable)

  1. A strain of avian influenza, often lethal in humans but not transmissible between humans.
    • Authorities said the discovery of H5N9 bird flu in poultry came alongside the detection of the more common H5N1 strain on the same farm in Merced county, California, and that almost 119,000 birds on the farm had been killed since early December.2025 January 27, Edward Helmore, “First outbreak of rare bird flu strain reported at California poultry farm”, in The Guardian, archived from the original on 25 Mar 2025

Questions about H5N1

What does H5N1 mean?
H5N1 means a strain of avian influenza, often lethal in humans but not transmissible between humans.
What part of speech is H5N1?
H5N1 is a noun.

Words near H5N1 in the dictionary

  1. h4x0r
  2. h4x0rs
  3. h4x0rz
  4. h4x3r
  5. h4xx0r
  6. H5N1
  7. H5N2
  8. H5N9
  9. H70
  10. h8
  11. h8ed

Source and license

Adapted from Wiktionary: H5N1 (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “H5N1.” Word.ws, https://word.ws/h5n1. Based on Wiktionary, CC BY-SA 4.0.