Definition of hydatid in English:


Syllabification: hy·da·tid
Pronunciation: /ˈhīdətid


  • 1A cyst containing watery fluid.
  • 1.1A cyst formed by and containing a tapeworm larva.
    More example sentences
    • Most hydatid cysts develop in the liver, and most of them are asymptomatic at the time of diagnosis.
    • However, a developing hydatid cyst up to 5 cm in diameter may not show scolices as they appear about 1 year after infestation.
    • Definitive diagnosis is made by identifying the hydatid cyst that is usually first detected by radiologic studies.
  • 1.2A tapeworm larva.


late 17th century: from modern Latin hydatis, from Greek hudatis, hudatid- 'watery vesicle', from hudōr, hudat- 'water'.

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