Definition of plethora in English:


Syllabification: pleth·o·ra
Pronunciation: /ˈpleTHərə


  • 2 Medicine An excess of a bodily fluid, particularly blood.
    More example sentences
    • With the development of plethora, the number of reticulated cells in the blood decreased.
    • An anemia which developed despite continued blood transfusions in two dogs splenectomized during plethora has also been studied.



Pronunciation: /ˈpleTHərik, pləˈTHôrik/
( • archaic or Medicine )
More example sentences
  • Why dedicate so much attention to Sugimoto and only illustrate Araki's plethoric production by four weakly-relevant small prints…?
  • Our neighbour was a plethoric gentleman who sat, head bowed in hands, in front of a double whiskey, fast asleep.
  • Many of the revisions they suggest exacerbate the leaden, plethoric style that comes naturally to lawyers (including law professors).


mid 16th century (in the medical sense): via late Latin from Greek plēthōrē, from plēthein 'be full'.


Strictly, a plethora is not just an abundance of something, it is an excessive amount. However, the new, looser sense is now so dominant that it must be regarded as part of standard English.

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