noun \ˈflü\

: a common disease that is caused by a virus and that causes fever, weakness, body aches, and breathing problems

Full Definition of FLU

:  influenza
:  any of several virus diseases marked especially by respiratory or intestinal symptoms
flu–like \ˈflü-ˌlīk\ adjective

Examples of FLU

  1. He came down with a bad bout of the flu.

Origin of FLU

by shortening
First Known Use: 1839


noun \ˈflü\   (Medical Dictionary)

Medical Definition of FLU

: any of several diseases caused by bacteria or viruses and marked especially by respiratory or intestinal symptoms—see intestinal flu
flu·like \-ˌlīk\ adjective


Next Word in the Dictionary: fluate
Previous Word in the Dictionary: fltg
All Words Near: flu

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