Pyralidae: The Pyralidae, commonly called pyralid moths, snout moths or grass moths, are a family of Lepidoptera in the ditrysian superfamily Pyraloidea. In many (particularly older) classifications, the grass moths (Crambidae) are included in the Pyralidae as a subfamily, making the ... (Biology) [100%] 2024-02-28 [Pyralidae] [Moth families]...
Pyralinae: The Pyralinae are the typical subfamily of snout moths (family Pyralidae) and occur essentially worldwide, in some cases aided by involuntary introduction by humans. They are rather rare in the Americas however, and their diversity in the Australian region is ... (Subfamily of moths) [88%] 2022-09-05 [Pyralinae] [Moth subfamilies]...
Peraclidae: Peraclidae is a family of pelagic sea snails or "sea butterflies", marine gastropod mollusks in the superfamily Cymbulioidea. This family has no subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). (Biology) [77%] 2024-09-27 [Peraclidae]
Prayidae: Prayidae is a family of marine invertebrates in the order Siphonophorae. They are colonial, and the colonies can superficially resemble jellyfish; although they appear to be a single organism, each specimen is actually a colony of Siphonophora. (Family of hydrozoans) [75%] 2023-12-20 [Prayidae] [Calycophorae]...
Perlidae: The Perlidae are a family of stoneflies, with more than 50 genera and 1,100 described species. The majority of the Perlidae are found in eastern North America, but they occur worldwide except for Antarctica and parts of Africa. (Biology) [75%] 2023-09-15 [Perlidae] [Plecoptera families]...
Genera (operating system): Genera is a commercial operating system and integrated development environment for Lisp machines created by Symbolics. It is essentially a fork of an earlier operating system originating on the Massachusetts Institute of Technology (MIT) AI Lab's Lisp machines which ... (Operating system) [61%] 2024-01-04 [Common Lisp implementations] [Common Lisp (programming language) software]...
Pyramidal inversion: In chemistry, pyramidal inversion (also umbrella inversion) is a fluxional process in compounds with a pyramidal molecule, such as ammonia (NH3) "turns inside out". It is a rapid oscillation of the atom and substituents, the molecule or ion passing through ... (Chemistry) [54%] 2023-09-07 [Physical chemistry] [Stereochemistry]...
Pyramidal alkene: Pyramidal alkenes are alkenes in which the two carbon atoms making up the double bond are not coplanar with their four substituents. This deformation results from geometric constraints. (Chemistry) [54%] 2023-10-05 [Alkenes] [Chemical bonding]...
Faisceau pyramidal: En neuroanatomie, le faisceau pyramidal désigne les axones moteurs cortico-spinaux qui transmettent la commande motrice du cortex cérébral jusqu'aux motoneurones et interneurones de la corne antérieure de la moelle épinière. Ce faisceau cortico-spinal est qualifié de « pyramidal » car ... [54%] 2023-09-26
Pyramidal carbocation: A pyramidal carbocation is a type of carbocation with a specific configuration. This ion exists as a third class, besides the classical and non-classical ions. (Physics) [54%] 2023-08-01 [Cations] [Reactive intermediates]...
Pyramidal eminence: The pyramidal eminence (pyramid) is a conical projection in the middle ear. It is situated immediately behind the fenestra vestibuli (oval window), and in front of the vertical portion of the facial canal; it is hollow, and contains the stapedius ... [54%] 2023-06-30 [Auditory system]
Pyramidal neuron: Pyramidal neurons, also known as pyramidal cells, are neurons with a pyramidal shaped cell body (soma) and two distinct dendritic trees. The basal dendrites emerge from the base and the apical dendrites from the apex of the pyramidal cell body. [54%] 2021-12-24 [Neuroscience] [Neuron]...
Pyramidal peak: A pyramidal peak, sometimes called a glacial horn in extreme cases, is an angular, sharply pointed mountain peak which results from the cirque erosion due to multiple glaciers diverging from a central point. Pyramidal peaks are often examples of nunataks. (Earth) [54%] 2022-06-04 [Mountains] [Glacial erosion landforms]...
Pic pyramidal: Ne doit pas être confondu avec nunatak. Pour les articles homonymes, voir horn. [54%] 2024-05-22
Pyramidal tracts: The pyramidal tracts include both the corticobulbar tract and the corticospinal tract. These are aggregations of efferent nerve fibers from the upper motor neurons that travel from the cerebral cortex and terminate either in the brainstem (corticobulbar) or spinal cord ... (The corticobulbar tract and the corticospinal tract) [54%] 2024-04-12 [Central nervous system pathways] [Motor system]...
Pyramide G1B: Cet article est une ébauche concernant une sépulture d’Égypte antique. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants. [53%] 2023-07-30