Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The presence of an abnormally large number of white blood cells with single nuclei in the bloodstream.
  • n. Infectious mononucleosis.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A viral infection marked by extreme fatigue, high fever, and swollen lymph nodes, caused by an unusually high number of monocytes.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. an acute disease characterized by fever and swollen lymph nodes and an abnormal increase of mononuclear leucocytes or monocytes in the bloodstream; not highly contagious; some believe it can be transmitted by kissing

Etymologies

mono- + nucle(us) + -osis.
(American Heritage® Dictionary of the English Language, Fourth Edition)
mono- + nucleus + -osis (Wiktionary)

Examples

  • -- RB Rolandon Finch, who had the end of his freshman year wiped out by mononucleosis, is expected back for spring.

    Boston College - Team Notes

  • The virus that causes infectious mononucleosis is excreted for months, sometimes years, in body fluids, but only appears to be contagious during the early phase of the illness.

    Medpundit

  • The one time I asked to clock out early and go home was when I showed up with a viral infection called mononucleosis that I could have passed on to my co-workers and customers with a cough or a sneeze.

    Elisa Batista: Lack of Paid Sick Days May Claim Latino Lives

  • Also known as mononucleosis, EBV could hit teenagers especially hard.

    The Autoimmune Epidemic

  • The daughter - who we know is fertile because she's knocked up again, or maybe for the first time ... she did like take a five-month leave from high school because she had [uses fingers to indicate quote marks] 'mononucleosis' right around the time the baby was being born.

    MRC Latest Headlines

  • MAHER: Okay, but she did like take a five-month leave from high school because she had [uses fingers to make quote marks] "mononucleosis" right around the time the baby was being born.

    NewsBusters.org - Exposing Liberal Media Bias

  • ... a five-month leave from high school because she had [uses fingers to make quote marks] "mononucleosis" right around the time the baby was being born.

    NewsBusters.org - Exposing Liberal Media Bias

  • Manchester Bon Iver on Tour Stuck in a Wisconsin cabin with mononucleosis in 2007, Justin Vernon watched an episode of the TV show "Northern Exposure" in which the characters celebrated the first snowfall by wishing each other a "bon hiver."

    What's On Around Europe

  • Prior infection with the Epstein-Barr virus (the virus that causes infectious mononucleosis) is also associated with a greater risk for lymphoma.

    Hodgkin's Lymphoma -Diagnosis and Treatment

  • Shalee Lehning, who missed three games late in the season because of mononucleosis.

    Raleigh: Maryland gets No. 1 seed after taking ACC crown

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