All articles starting with M
36,687 articles
Morphinan
Morphinan is a tetracyclic chemical scaffold, first recognized as the structural core of morphine, that underlies opioid analgesics like oxycodone, antagonists like naloxone, and the antitussive dextromethorphan.
Morphine
Morphine, the principal opium poppy alkaloid isolated by Sertürner in 1803, is a mu-opioid receptor agonist and WHO essential medicine for severe pain, with major global access disparities and addiction risks.
Morphine (band)
Morphine was an American alternative rock trio formed in Boston in 1989, blending two-string bass and baritone saxophone into a style the band called "low rock".
Morphine Love Dion
Morphine Love Dion, American Nicaraguan nonbinary drag queen from Hialeah and Miami, Florida. Drag Race season 16 fifth-place finisher, record 8 lip syncs in one season, Queen of She Done Already Done Had Herses, later All Stars 11; name from Lady Gaga's 'Marry The Night' and the House of Dion.
Morphing (computer graphics)
Morphing is a computer graphics technique that transforms one image or shape into another by warping features into alignment and blending colors, producing in-between frames.
Morphing wing mechanism
A morphing wing mechanism is a structural and actuation system that lets an aircraft wing change shape smoothly in flight, replacing hinged control surfaces with flexible, jointless structures.
Morphism
A morphism is an abstract arrow from one object of a category to another, with composition and identities, defined without reference to functions or sets.
Morpho menelaus
Morpho menelaus, the Menelaus blue morpho, is a Neotropical Nymphalidae butterfly with ~12 cm iridescent blue wings colored by Christmas-tree scale nanostructures, angle-dependent discoloration, and hydrophobic, biomimetic surfaces.
Morphodynamics
Morphodynamics is the study of the mutual adjustment of topography and fluid dynamics involving sediment transport, a feedback loop that shapes shores, estuaries, riverbeds, and dunes.
Morphoea
Morphoea, usually spelled morphea and also called localized scleroderma, is a chronic inflammatory disorder that thickens the skin and underlying tissue but, unlike systemic sclerosis, spares internal organs; it mostly affects children and women.
Morphoelasticity
Morphoelasticity is the theory of growing elastic materials, a branch of continuum mechanics describing how growth generates deformation and stress, with the term coined by Alain Goriely.
Morphogen
Morphogen: a signaling molecule forming a concentration gradient that gives cells positional information during embryonic development. Term coined by Turing (1952); French Flag model by Wolpert (1969); examples include Bicoid, Shh, Dpp, BMP, and Nodal.
Morphogenesis
Morphogenesis: the biological process by which organisms develop their shape, alongside cell growth and differentiation. Covers Turing morphogens, cell mechanics, adhesion, cortical tension, tissue folding, and organoid self-organization.
Morpholine
Morpholine is a six-membered saturated heterocycle containing one nitrogen and one oxygen atom (formula C₄H₉NO), a colorless hygroscopic liquid made industrially for rubber chemicals, corrosion inhibitors, and drugs.
Morpholino (chemical group)
Morpholino, named morpholin-4-yl in current IUPAC nomenclature, is the univalent substituent group derived from morpholine, a saturated six-membered ring with one oxygen and one nitrogen atom.
Morphological analysis (decision making)
Morphological analysis, also known as general morphological analysis, is a structured decision-making method that reduces thousands of possible configurations to a small set of internally consistent solutions or scenarios.
Morphological computation
Morphological computation is a concept in robotics and embodied cognition holding that a body's form and dynamics can perform work otherwise left to a central controller, underpinning soft robotics.
Morphological filtering
Morphological filtering is a nonlinear image-processing technique that probes an image with a small template called a structuring element, built from erosions and dilations, to remove noise, enhance shapes, and extract features.
Morphological typology
Morphological typology is the branch of linguistic typology that classifies languages by how morphemes are packed into words, using Greenberg's index of synthesis and distinguishing isolating, agglutinating, and fusional types.
Morphology (biology)
Morphology, also called biological morphology, is the branch of biology that studies the form and structure of organisms. Coined by Goethe and Burdach in Germany, it spans body plans, cells, and tissues.
Morphology (linguistics)
Morphology (linguistics) is the study of word structure and morphemes, covering inflection versus derivation, allomorphy, typology (isolating, agglutinating, fusional, polysynthetic), its history from Schleicher and de Saussure, and computational morphology.
Morphology and anatomy of haircap mosses
Haircap mosses (Polytrichaceae) are a moss family whose leaves carry microscopic photosynthetic folds called lamellae, whose capsules open through solid unjointed teeth, and whose stems contain conducting tissue resembling simplified vascular tissue.
Morphology and reproduction of Cycas
Cycas is a genus of about 120 dioecious, palm-like cycads, unique among living cycad genera in bearing loose, leaf-like female megasporophylls rather than compact cones, alongside coralloid nitrogen-fixing roots.
Morphology of Diptera
The morphology of Diptera, the true flies, is the body structure of an order defined by a single wing pair and reduced hindwings called halteres, covering more than 154,000 described species.
Morphology of the Folktale
Morphology of the Folktale (Морфология сказки) is a 1928 monograph by the Soviet folklorist Vladimir Propp that breaks the Russian fairy tale into a fixed sequence of narrative functions.
Morphology of Trichogrammatidae
Morphology of Trichogrammatidae covers the body structure of minute parasitoid wasps in the superfamily Chalcidoidea, among the smallest of all insects at 0.16 to 1.1 mm.
Morphology–density relation
The morphology–density relation is the observed correlation between galaxy type and local galaxy density: ellipticals dominate dense regions, spirals low-density ones, first quantified by Alan Dressler in 1980.
Morphophonology
Morphophonology, also called morphonology or morphophonemics, studies sound alternations arising from morphology-phonology interaction: allomorphs, morphophonemic rules, conditioning, and interface theories from Trubetzkoy to Stratal OT.
MorphOS
MorphOS is a lightweight desktop operating system for PowerPC-based computers, descended from classic AmigaOS and able to run legacy Amiga applications through a built-in JIT compiler.
MorphoSys AG
MorphoSys AG is a German biotechnology company founded in 1992 in Martinsried near Munich by Simon Moroney and Andreas Plückthun, acquired by Novartis in 2024 for €2.7 billion.