Word.ws English Dictionary

H1N1

H1N1 noun: a strain of influenza, the most common cause of flu in humans; also the strain responsible for swine flu.

h1n1: a strain of influenza, the most common cause of flu in humans; also the strain responsible for...
Image: Sakurambo, Public domain, via Wikimedia Commons

Noun

H1N1 (uncountable)

  1. A strain of influenza, the most common cause of flu in humans; also the strain responsible for swine flu.
    • The current H1N1 virus (swine flu) is a mixture of avian flus that passed through pigs to humans.2010, Malcolm Knox, The Monthly, April 2010, Issue 55, The Monthly Ptd Ltd, page 44

Origin of H1N1

The strain classified as containing hemagglutinin type 1, and neuraminidase type 1.

Phrases with H1N1

Questions about H1N1

What does H1N1 mean?
H1N1 means a strain of influenza, the most common cause of flu in humans; also the strain responsible for swine flu.
What part of speech is H1N1?
H1N1 is a noun.

Words near H1N1 in the dictionary

  1. H0
  2. H0 scale
  3. H1
  4. H1-B
  5. H1-Bs
  6. H1N1
  7. H2
  8. H2G2
  9. H2H
  10. H2RA
  11. H2RAs

Source and license

Adapted from Wiktionary: H1N1 (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.

Last updated:

Cite this entry: “H1N1.” Word.ws, https://word.ws/h1n1. Based on Wiktionary, CC BY-SA 4.0.