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mononucleosis

noun

Simple meaning

An acute disease having fever and swollen lymph nodes and an abnormal increase of mononuclear leucocytes or monocytes in the bloodstream.

Pronunciation

Say it like this:

mahnuhnookleeohsuhs

Say the bold part a little louder.

US device voice
IPA pronunciation (US)

mɑnəˈnukliˈoʊsəs

This word is pronounced essentially the same in American and British English, so one transcription covers both.

IPA (International Phonetic Alphabet) is a standard way of writing speech sounds.

Word Review

Definition

Everyday modern meanings first, grouped by part of speech.

noun

  1. pathology

    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

  2. pathology

    A viral infection marked by extreme fatigue, high fever, and swollen lymph nodes.

Word at a Glance

Difficulty
C2 · Proficient (estimated)
Frequency
Rare
Formality
Technical

Word Aura™

How this word commonly comes across.

This meaning: 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

Used this way, mononucleosis is a specialist word with a faintly unfavourable edge. It carries more force than its gentler alternatives. This is a clinical use: it belongs to medical description, where it is factual rather than emotive.

Emotional tone
Slightly negative
Formality
Specialist/technical
Intensity
Strong
How common
Specialized
Connotation
Critical or judgemental
Usage feel
Clinical and detached

Where it naturally appears

  • Medicine/healthcare
  • Science
  • Technical/specialist writing

Usage note

In general conversation this sense usually needs explaining — outside its field, people reach for a plainer word.

Nearby words

  • mono , more casual, better suited to speech than writing

Word Aura describes common impressions, not a measurement. Tone changes with sentence, speaker, relationship and situation.

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Common Patterns and Combinations

How this word naturally appears with others.

infectious mononucleosismononucleosis syndromechronic mononucleosiscytomegalovirus mononucleosiscmv mononucleosisacute mononucleosisnegative mononucleosisebv mononucleosis

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Word Family

Related forms, grouped by how they connect.

Compound terms

Established multiword terms.

  • infectious mononucleosisnounCompound term

    An acute disease characterized by fever and swollen lymph nodes and an abnormal increase of mononuclear leucocytes or monocytes in the bloodstream.

Related Words

Connected to the same idea, not synonyms.

More about this wordSynonyms, forms, origin

Synonyms

Sense: acute disease characterized by fever and swollen lymph nodes and an abnormal increase of mononuclear leucocytes

monoInformal

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Dictionary data from Wiktionary via the Free Dictionary API. Simple meanings, combinations and word intelligence are built from verified reference data, no AI is used to load this page.