parallelism

noun

par·​al·​lel·​ism ˈper-ə-ˌle-ˌli-zəm How to pronounce parallelism (audio)
-lə-ˌli-,
ˈpa-rə-
1
: the quality or state of being parallel
the parallelism of architectural figures
2
: resemblance, correspondence
parallelism between obesity and hypertension H. M. Marvin
3
: repeated syntactical similarities introduced for rhetorical effect
biblical poetry relies largely on parallelism of lines E. P. Sanders
4
: a theory that mind and matter accompany one another but are not causally related
5
: the independent development of similar traits or features (as of body structure or behavior) in different species or lineages that have common ancestry and that typically occupy similar environments or ecological niches : parallel evolution

Examples of parallelism in a Sentence

There is some degree of parallelism between the lives of the two women. There is a certain parallelism in the development of the two technologies.
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.
As model sizes increase, memory systems must incorporate parallelism and scaling techniques to keep up with AI workload demands. Steven Woo, Forbes.com, 13 June 2025 Pipeline parallelism assigns different neural network layers to different devices. Jitender Jain, Forbes.com, 6 June 2025 This design allows higher block frequency and parallelism while maintaining consensus. Tomer Niv, Forbes.com, 29 May 2025 The evolution across a century of which each family member considers to be home during their respective teen years is threaded by uncanny parallelisms that lead to the question: Can memories can be inherited, repeated, and ultimately, relived? Samantha Bergeson, IndieWire, 13 May 2025 See All Example Sentences for parallelism

Word History

First Known Use

1610, in the meaning defined at sense 1

Time Traveler
The first known use of parallelism was in 1610

Browse Nearby Words

Cite this Entry

“Parallelism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/parallelism. Accessed 27 Jun. 2025.

Kids Definition

parallelism

noun
: the quality or state of being parallel
especially : similarity of construction of word groups especially for effect or rhythm

Medical Definition

: a philosophical or psychological doctrine that there is a one-to-one correspondence between events in the mind and events in the brain but that the two sets of events exist without interacting in a causal way

called also psychophysical parallelism

More from Merriam-Webster on parallelism

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!