flu

The flu is a disease that's easily spread between people. When you have body aches, a fever, and a sore throat, you probably have the flu.

The word flu is shorthand for "influenza," the official name of this infectious, viral illness. It's not unusual to get the flu, especially in the winter, and while it usually isn't serious, it can be deadly for some groups of people. Your chances of getting the flu are greatly reduced if you get a flu shot. The Italian root influenza means "influenza" or "epidemic," but also "visitation" or "influence of the stars."

Definitions of flu
  1. noun
    an acute febrile highly contagious viral disease
    synonyms: grippe, influenza
    see moresee less
    types:
    Asian influenza, Asiatic flu
    influenza caused by the Asian virus that was first isolated in 1957
    swine flu, swine influenza
    an acute and highly contagious respiratory disease of swine caused by the orthomyxovirus thought to be the same virus that caused the 1918 influenza pandemic
    type of:
    contagion, contagious disease
    any disease easily transmitted by contact
    respiratory disease, respiratory disorder, respiratory illness
    a disease affecting the respiratory system
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