Definitions for Hippocampus
ˌhɪp əˈkæm pəs; -paɪ, -pihip·pocam·pus

Princeton's WordNetRate this definition:0.0 / 0 votes

1. hippocampusnoun

   a complex neural structure (shaped like a sea horse) consisting of grey matter and located on the floor of each lateral ventricle; intimately involved in motivation and emotion as part of the limbic system; has a central role in the formation of memories

2. Hippocampus, genus Hippocampusnoun

   seahorses

WiktionaryRate this definition:0.0 / 0 votes

1. hippocampusnoun

   A mythological creature with the front head and forelimbs of a horse and the rear of a dolphin; a hippocamp.

2. hippocampusnoun

   A part of the brain located inside the temporal lobe, consisting mainly of grey matter. It is a component of the limbic system and plays a role in memory and emotion. So named because of its resemblance to the seahorse.

3. Etymology: From hippocampus, from ἱππόκαμπος, from ἵππος and κάμπος.

WikipediaRate this definition:0.0 / 0 votes

1. Hippocampus

   The hippocampus (via Latin from Greek ἱππόκαμπος, 'seahorse') is a major component of the brain of humans and other vertebrates. Humans and other mammals have two hippocampi, one in each side of the brain. The hippocampus is part of the limbic system, and plays important roles in the consolidation of information from short-term memory to long-term memory, and in spatial memory that enables navigation. The hippocampus is located in the allocortex, with neural projections into the neocortex in humans, as well as primates. The hippocampus, as the medial pallium, is a structure found in all vertebrates. In humans, it contains two main interlocking parts: the hippocampus proper (also called Ammon's horn), and the dentate gyrus.In Alzheimer's disease (and other forms of dementia), the hippocampus is one of the first regions of the brain to suffer damage; short-term memory loss and disorientation are included among the early symptoms. Damage to the hippocampus can also result from oxygen starvation (hypoxia), encephalitis, or medial temporal lobe epilepsy. People with extensive, bilateral hippocampal damage may experience anterograde amnesia: the inability to form and retain new memories. Since different neuronal cell types are neatly organized into layers in the hippocampus, it has frequently been used as a model system for studying neurophysiology. The form of neural plasticity known as long-term potentiation (LTP) was initially discovered to occur in the hippocampus and has often been studied in this structure. LTP is widely believed to be one of the main neural mechanisms by which memories are stored in the brain. In rodents as model organisms, the hippocampus has been studied extensively as part of a brain system responsible for spatial memory and navigation. Many neurons in the rat and mouse hippocampus respond as place cells: that is, they fire bursts of action potentials when the animal passes through a specific part of its environment. Hippocampal place cells interact extensively with head direction cells, whose activity acts as an inertial compass, and conjecturally with grid cells in the neighboring entorhinal cortex.

ChatGPTRate this definition:0.0 / 0 votes

1. hippocampus

   The hippocampus is a complex brain structure embedded deep into temporal lobe. It's a key component of the limbic system, which is involved in memory storage, learning, emotion regulation, and spatial navigation. It has a distinctive, curved shape somewhat similar to a seahorse – leading to its name, derived from the Greek words “hippos” for horse and “kampos” for sea monster. It communicates with other parts of the brain through an extensive network of neural pathways. Damage or impairments to the hippocampus can lead to a variety of memory issues, including amnesia.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Hippocampusnoun

   a fabulous monster, with the head and fore quarters of a horse joined to the tail of a dolphin or other fish (Hippocampus brevirostris), -- seen in Pompeian paintings, attached to the chariot of Neptune

2. Hippocampusnoun

   a genus of lophobranch fishes of several species in which the head and neck have some resemblance to those of a horse; -- called also sea horse

3. Hippocampusnoun

   a name applied to either of two ridges of white matter in each lateral ventricle of the brain. The larger is called hippocampus major or simply hippocampus. The smaller, hippocampus minor, is called also ergot and calcar

4. Etymology: [L., the sea horse, Gr. a hippocampus (in senses 1 and 2); "i`ppos horse + to bend.]

WikidataRate this definition:0.0 / 0 votes

1. Hippocampus

   The hippocampus is a major component of the brains of humans and other vertebrates. It belongs to the limbic system and plays important roles in the consolidation of information from short-term memory to long-term memory and spatial navigation. Humans and other mammals have two hippocampi, one in each side of the brain. The hippocampus is a part of the cerebral cortex; and in primates it is located in the medial temporal lobe, underneath the cortical surface. It contains two main interlocking parts: Ammon's horn and the dentate gyrus. In Alzheimer's disease, the hippocampus is one of the first regions of the brain to suffer damage; memory loss and disorientation are included among the early symptoms. Damage to the hippocampus can also result from oxygen starvation, encephalitis, or medial temporal lobe epilepsy. People with extensive, bilateral hippocampal damage may experience anterograde amnesia—the inability to form or retain new memories. In rodents, the hippocampus has been studied extensively as part of a brain system responsible for spatial memory and navigation. Many neurons in the rat and mouse hippocampus respond as place cells: that is, they fire bursts of action potentials when the animal passes through a specific part of its environment. Hippocampal place cells interact extensively with head direction cells, whose activity acts as an inertial compass, and conjecturally with grid cells in the neighboring entorhinal cortex.

Chambers 20th Century DictionaryRate this definition:0.0 / 0 votes

1. Hippocampus

   hip′o-kam-pus, n. a genus of small fishes with head and neck somewhat like those of a horse, the sea-horse: (anat.) a raised curved trace on the floor of the lateral ventricle of the brain. [Gr. hippokampos—hippos, a horse, kampos, a sea-monster.]

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Hippocampus

   A curved elevation of gray matter extending the entire length of the floor of the temporal horn of the lateral ventricle. The hippocampus, subiculum, and DENTATE GYRUS constitute the hippocampal formation. Sometimes authors include the ENTORHINAL CORTEX in the hippocampal formation.

Dictionary of Nautical TermsRate this definition:0.0 / 0 votes

1. hippocampus

   A small fish, so termed from the head resembling that of a horse. They live among reeds and long fuci, to which they cling with prehensile tails.

Editors ContributionRate this definition:0.0 / 0 votes

1. hippocampus

   An element of the brain in a human being and specific animals.

   The hippocampus has a role in memory and memory formation.

   
   

   Submitted by MaryC on September 6, 2020  

MythologyRate this definition:0.0 / 0 votes

1. Hippocampus

   (Hippocam′pus). The name of Neptune’s favorite horse, a fabulous marine animal, half horse and half fish.

Matched Categories

1. • Fish Genus
   • Neural Structure

Usage in printed sourcesFrom: 

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How to pronounce Hippocampus?

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How to say Hippocampus in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of Hippocampus in Chaldean Numerology is: 9

2. Pythagorean Numerology

   The numerical value of Hippocampus in Pythagorean Numerology is: 2

Examples of Hippocampus in a Sentence

1. Huda Akil:

   When Robert [King] tells you that he gets disoriented physically, I can tell him that people who are chronically depressed have a shrunken hippocampus, and that that affects your ability to orient in space, in 3D.

2. David Diamond:

   There’s one part of the brain extremely sensitive to lack of oxygen : the hippocampus, when it is harmed by a lack of oxygen, it may remain damaged for life.

3. Naren Ramakrishna:

   We believe that even really low doses of radiation can result in impairment in hippocampus function long term, the dose that would’ve been delivered using X-rays would have been more than 10 times greater.

4. Steve Ramirez:

   [This finding suggests] that we can bias the hippocampus to come back online at a timepoint when we wouldnt expect it to be online anymore because the memory is too old, odor can act as a cue to reinvigorate or reenergize that memory with detail.

5. Wendy Suzuki:

   It [ stress ] actually makes certain brain areas smaller, people that have chronic stress have smaller parts of the brain that are important for memory. That part of the brain is called the hippocampus.

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=Hippocampus
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Hippocampus
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Hippocampus
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/Hippocampus
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=Hippocampus
7. ^ Chambers 20th Century Dictionary
   https://www.gutenberg.org/files/37683/37683-h/37683-h.htm#:~:text=Hippocampus
8. ^ Dictionary of Nautical Terms
   https://www.gutenberg.org/cache/epub/26000/pg26000-images.html#:~:text=Hippocampus
9. ^ Mythology
   https://www.gutenberg.org/cache/epub/42474/pg42474-images.html#:~:text=Hippocampus
10. ^ Usage in printed sources
    https://books.google.com/ngrams/graph?content=Hippocampus