Standard Lemma guide

mononucleosis

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Canada, General-American: /ˌmɑnoʊnukliˈoʊsɪs/
  • US: Recorded audio is listed in the source snapshot.
  • rhymes with -əʊsɪs

1

noun

Meaning 1

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

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

Topics: medicine, pathology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: infectious mononucleosis, glandular fever, Pfeiffer's disease, Pfeiffer's glandular fever, kissing disease, mono

Antonyms: none provided

2

noun

Meaning 2

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

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: infectious mononucleosis, mono, glandular fever, kissing disease

Antonyms: none provided

Broader terms: infectious disease

History

Etymology

From mono- + nucleus + -osis.

Across languages

Translations

41 source translations are retained for this English entry.

  • Chinese Mandarin: 單核細胞增多症 /单核细胞增多症 (dānhé xìbāo zēngduō zhèng) — viral infection
  • Chinese Mandarin: 腺熱 /腺热 (xiànrè) — viral infection
  • Czech: mononukleóza — viral infection
  • Danish: mononukleose — viral infection
  • Danish: kyssesyge — viral infection
  • Dutch: ziekte van Pfeiffer — viral infection
  • Dutch: klierkoorts — viral infection
  • Dutch: pfeiffer — viral infection
  • Esperanto: mononukleozo — viral infection
  • Finnish: pusutauti — viral infection
  • Finnish: mononukleoosi — viral infection
  • French: mononucléose — viral infection
  • German: infektiöse Mononukleose — viral infection
  • German: Pfeiffer-Drüsenfieber — viral infection
  • Greek: αδενοπάθεια (adenopátheia) — viral infection
  • Greek: μονοπυρήνωση (monopyrínosi) — viral infection
  • Hungarian: mononukleózis — viral infection
  • Hungarian: mirigyláz — viral infection
  • Hungarian: csókbetegség — viral infection
  • Icelandic: einkirningasótt — viral infection
  • Icelandic: eitlasótt — viral infection
  • Icelandic: kossasótt — viral infection
  • Indonesian: demam kelenjar — viral infection
  • Indonesian: mononukleosis — viral infection
  • Irish: monanúiclé-óis — viral infection
  • Irish: fiabhras faireoige — viral infection
  • Italian: mononucleosi — viral infection
  • Japanese: 伝染性単核球症 (densen-seitan-kakukyū-shō) — viral infection
  • Polish: mononukleoza — viral infection
  • Romanian: mononucleoză — viral infection
  • Romanian: mononucleoză infecțioasă — viral infection
  • Spanish: mononucleosis — viral infection
  • Spanish: mononucleosis infecciosa — viral infection
  • Spanish: enfermedad del beso — viral infection
  • Swedish: körtelfeber — viral infection
  • Swedish: infektiös mononukleos — viral infection
  • Swedish: kyssjuka — viral infection
  • Turkish: öpücük hastalığı — viral infection
  • Turkish: mono hastalığı — viral infection
  • Welsh: chwarenglwyf — viral infection
  • Welsh: twymyn y chwarennau — viral infection
Real reading context

mononucleosis in complete knowledge articles