Definition of plethora noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈpleθərə//
; NAmE NAmE//ˈpleθərə//
[singular] (formal)
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an amount that is greater than is needed or can be used synonym excess The report contained a plethora of detail. Word Originmid 16th cent. (in the medical sense): via late Latin from Greek plēthōrē, from plēthein ‘be full’.
See the Oxford Advanced American Dictionary entry: plethora