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Definition of plethora

plethora

/ˈplɛθ.ə.rə/
pleth · o · ra

Plural:plethoras
•
Adjective:plethoric
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plethora Lexical Profile

plethora Game Scores & Validity

• noun

1

A large or excessive amount of something; a superabundance or profusion.

Example

"The university library offers a plethora of digital resources for students conducting historical research."


2

A medical condition characterized by an excess volume of blood in the circulatory system or in a specific organ, causing swelling and a flushed complexion.

Example

"The neonatal examination revealed mild plethora, prompting the physician to check the infant's hematocrit levels."

Synonyms
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Antonyms
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Word Nuance & Usage

Traditionally, 'plethora' implied an unhealthy or unwanted excess, though in modern usage it frequently means simply a large or generous amount without negative connotation.

Word Origin & Etymology

Borrowed in the 16th century from Late Latin plethora, from Ancient Greek plēthōrē ('fullness'), derived from plēthein ('to be full'). It originally entered English as a medical term describing an excess of blood or bodily humors.

Cite this Entry


Wordmom. (2026). Definition of Plethora. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/plethora
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