plural plexuses
ˈplek-sə-səz 
1
: a network of anastomosing or interlacing blood vessels or nerves
2
: an interwoven combination of parts or elements in a structure or system
Examples of plexus in a Sentence
Recent Examples on the Web
The word complexity comes from the Latin plexus, which means intertwined.
—
Carlos Gershenson, The Conversation, 11 Dec. 2025
The nervous system manages the entire lower body through an intricate web of nerves called the lumbar plexus, which is embedded through the psoas.
—Literary Hub, 7 May 2025
It is primarily produced by a network of cells called the choroid plexus, which is located in the brain’s ventricles or cavities.
—Danielle Wilhour, Discover Magazine, 15 Aug. 2024
In the choroid plexus, a tissue in the large cavities of the brain that produces cerebrospinal fluid (CSF), the walls of blood vessels are much leakier.
—Yasemin Saplakoglu, Quanta Magazine, 20 June 2023
Hormones, such as inflammatory cytokines, neurotransmitters, and kinins, interact between the brain and the gut’s local area, called the myenteric plexus, explains Cynthia Quainoo, MD, a gastroenterologist at Gastroenterology Associates of Brooklyn.
—Addison Aloian, Women's Health, 21 Apr. 2023
However, a tuft of pubic hair is suddenly obstructed by coils of intestine and a plexus of blood vessels and nerve endings.
—Erik Morse, Vogue, 31 Mar. 2023
Alpha-klotho is highly abundant in a central structure of the brain called the choroid plexus.
—William A. Haseltine, Forbes, 20 Feb. 2023
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Carlos Gershenson, The Conversation, 11 Dec. 2025
The nervous system manages the entire lower body through an intricate web of nerves called the lumbar plexus, which is embedded through the psoas.
—Literary Hub, 7 May 2025
It is primarily produced by a network of cells called the choroid plexus, which is located in the brain’s ventricles or cavities.
—Danielle Wilhour, Discover Magazine, 15 Aug. 2024
In the choroid plexus, a tissue in the large cavities of the brain that produces cerebrospinal fluid (CSF), the walls of blood vessels are much leakier.
—Yasemin Saplakoglu, Quanta Magazine, 20 June 2023
Hormones, such as inflammatory cytokines, neurotransmitters, and kinins, interact between the brain and the gut’s local area, called the myenteric plexus, explains Cynthia Quainoo, MD, a gastroenterologist at Gastroenterology Associates of Brooklyn.
—Addison Aloian, Women's Health, 21 Apr. 2023
However, a tuft of pubic hair is suddenly obstructed by coils of intestine and a plexus of blood vessels and nerve endings.
—Erik Morse, Vogue, 31 Mar. 2023
Alpha-klotho is highly abundant in a central structure of the brain called the choroid plexus.
—William A. Haseltine, Forbes, 20 Feb. 2023
Cite this Entry
“Plexus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/plexus. Accessed 17 Dec. 2025.
Copy CitationKids Definition
Medical Definition
plexus
noun
plex·us
ˈplek-səs
plural plexuses
: a network of anastomosing or interlacing blood vessels or nerves
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