hippocampus
noun
hip·po·cam·pus
ˌhi-pə-ˈkam-pəs 
plural hippocampi
ˌhi-pə-ˈkam-ˌpī
-(ˌ)pē
: a curved elongated ridge that extends over the floor of the descending horn of each lateral ventricle of the brain, that consists of gray matter covered on the ventricular surface with white matter, and that is involved in forming, storing, and processing memory
Examples of hippocampus in a Sentence
Recent Examples on the Web
Share [Findings] Scientists trained subjects to exercise control over a single neuron, linked the hippocampus to regret, and concluded that humans smell in stereo.
—
Rafil Kroll-Zaidi, Harper's Magazine, 19 June 2024
In early Alzheimer’s stages, the hippocampus loses tissue rapidly and then atrophies as the disease progresses.
—Sandee Lamotte, CNN, 18 June 2024
But one of the most compelling pieces of evidence for memory, in particular, is a study that found aerobic exercise can increase the size of the hippocampus (a key part of your brain involved in memory and learning) by up to 2%, staving off a meaningful chunk of the shrinkage that happens with age.
—Erica Sloan, SELF, 17 June 2024
One of these might, say, represent all the molecular-scale ions, ion channels and so forth that produce currents in our neurons; another represents the firing patterns of the neurons themselves; another, the activity seen in compartments of the brain such as the hippocampus and frontal cortex.
—Quanta Magazine, 10 June 2024
See all Example Sentences for hippocampus 
Rafil Kroll-Zaidi, Harper's Magazine, 19 June 2024
In early Alzheimer’s stages, the hippocampus loses tissue rapidly and then atrophies as the disease progresses.
—Sandee Lamotte, CNN, 18 June 2024
But one of the most compelling pieces of evidence for memory, in particular, is a study that found aerobic exercise can increase the size of the hippocampus (a key part of your brain involved in memory and learning) by up to 2%, staving off a meaningful chunk of the shrinkage that happens with age.
—Erica Sloan, SELF, 17 June 2024
One of these might, say, represent all the molecular-scale ions, ion channels and so forth that produce currents in our neurons; another represents the firing patterns of the neurons themselves; another, the activity seen in compartments of the brain such as the hippocampus and frontal cortex.
—Quanta Magazine, 10 June 2024
See all Example Sentences for hippocampus
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'hippocampus.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Articles Related to hippocampus
Dictionary Entries Near hippocampus
Cite this Entry
“Hippocampus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hippocampus. Accessed 4 Jul. 2024.
Copy CitationMedical Definition
hippocampus
noun
hip·po·cam·pus
ˌhip-ə-ˈkam-pəs
: a curved elongated ridge that is an important part of the limbic system, extends over the floor of the descending horn of each lateral ventricle of the brain, consists of gray matter covered on the ventricular surface with white matter, and is involved in forming, storing, and processing memory see pes hippocampi
Love words? Need even more definitions?
Merriam-Webster unabridged
Share