Definition of mononucleosis
: an abnormal increase of mononuclear white blood cells in the blood; specifically : infectious mononucleosis
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Recent Examples of mononucleosis from the Web
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But mononucleosis sidelined him a month, delaying his breakout to stardom until his senior season.
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A teen at the time, doctors thought Darren had mononucleosis or similar illnesses.
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However, after getting diagnosed with mononucleosis half way through the season, her sophomore campaign was all but lost.
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MacKenzie Entwistle, 6-3, 180-pound right winger, Hamilton (OHL): His draft stock may have fallen because of a bout with mononucleosis, but the hardworking forward (12 goals in 54 games) is effective at both ends of the ice.
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Yale captain Robert Hurn, who was replaced in the first boat by Jonathan Winter prior to the IRA after contracting mononucleosis, was part of the third varsity boat win.
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West Nile seemed most likely, but other viruses were possible as well: H.I.V. and E.B.V., the virus that causes mononucleosis.
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Mark Cavendish, who has won 10 ATOC stages, is suffering from mononucleosis and is out.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mononucleosis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of mononucleosis
New Latin, from International Scientific Vocabulary mononuclear + New Latin -osis
MONONUCLEOSIS Defined for English Language Learners
mononucleosis
playDefinition of mononucleosis for English Language Learners
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medical : a disease that makes people very tired and weak for a long time
Medical Dictionary
mononucleosis
playMedical Definition of mononucleosis
: an abnormal increase of mononuclear white blood cells in the blood; specifically : infectious mononucleosis
Learn More about mononucleosis
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Britannica.com: Encyclopedia article about mononucleosis
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