multiplicity

noun

mul·​ti·​plic·​i·​ty ˌməl-tə-ˈpli-sə-tē How to pronounce multiplicity (audio)
plural multiplicities
1
a
: the quality or state of being multiple or various
b
: the number of components in a system (such as a multiplet or a group of energy levels)
2
: a great number
3
: the number of times a root of an equation or zero of a function occurs when there is more than one root or zero
the multiplicity of x = 2 for the equation (x − 2)3 = 0 is 3

Examples of multiplicity in a Sentence

a multiplicity of suggestions for turning the company around Shakespeare's works seem to encompass the full multiplicity of human experience.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
And that multiplicity is exactly what Fong and her collaborators discovered while studying another fast radio burst. Ashley Strickland, CNN, 24 Jan. 2025 Macdonald is one heckuva defensive mind, responsible for helping advance the league forward with multiplicity and versatility at the core of his philosophies. Nick Suss, The Tennessean, 13 Aug. 2024 The harem within emerges not as prison guards but as a chorus of multiplicity, offering voices and perspectives that enrich and deepen creative work. Fidan Cheikosman, JSTOR Daily, 1 Jan. 2025 The sliding door also reflects the light in the room, adding to the multiplicity of visual effects. Nicolas Milon, Architectural Digest, 5 Nov. 2024 See all Example Sentences for multiplicity 

Word History

Etymology

Middle English, from Middle French multiplicité, from Late Latin multiplicitat-, multiplicitas, from Latin multiplic-, multiplex

First Known Use

15th century, in the meaning defined at sense 1a

Time Traveler
The first known use of multiplicity was in the 15th century

Dictionary Entries Near multiplicity

Cite this Entry

“Multiplicity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/multiplicity. Accessed 2 Feb. 2025.

Kids Definition

multiplicity

noun
mul·​ti·​plic·​i·​ty ˌməl-tə-ˈplis-ət-ē How to pronounce multiplicity (audio)
plural multiplicities
1
: the quality or state of being multiple or various
2
: a great number

Medical Definition

multiplicity

noun
mul·​ti·​plic·​i·​ty ˌməl-tə-ˈplis-ət-ē How to pronounce multiplicity (audio)
plural multiplicities
1
: the quality or state of being multiple or various
2
: the ratio of the number of infectious particles (as of a bacteriophage) to the number of cells at risk
monolayer cultures … were infected at an effective multiplicity of approximately 100J. J. Holland

Legal Definition

multiplicity

noun
mul·​ti·​plic·​i·​ty ˌməl-tə-ˈpli-sə-tē How to pronounce multiplicity (audio)
plural multiplicities
1
a
: the quality or state of being multiple or various
b
: the charging of a single criminal act or offense as multiple separate charges or counts of an indictment or information
multiplicity does not require dismissal of the indictmentW. R. LaFave and J. H. Israel
compare duplicity sense 2, misjoinder

Note: Multiplicity raises the risk of violating the double jeopardy protection against receiving multiple sentences for a single offense. Multiplicity is a defect that can be corrected without dismissal of the case.

2
: a great number
joinder is allowed to avoid a multiplicity of actions

More from Merriam-Webster on multiplicity

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