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All articles starting with M

36,687 articles

Midden

Midden: an archaeological refuse deposit, especially a shell midden (Danish køkkenmøddinger) of discarded shellfish, bone, and artifacts. Found on every continent except Antarctica; archives of diet, seasonality, climate, and past landscapes.

Middle age

Middle age is the adulthood stage between young adulthood and old age, roughly 40 to 65, with no fixed biological boundary. Key markers include the debated U-shaped happiness nadir near age 50 and gradual physical changes such as presbyopia and sarcopenia.

Middle Aged Dad Jam Band

Middle Aged Dad Jam Band is an American cover band led by actors Ken Marino and David Wain, playing 1960s to 1980s rock, pop, and Motown with celebrity guests.

Middle Ages

The Middle Ages: European era between antiquity and the early modern period, also called the medieval period. Agrarian, manorial economy, revived towns and trade from the 11th century, and two plague pandemics (Justinianic, 541–750; Black Death, 1347–1351) killing 30–50% of the population.

Middle America (United States)

Middle America (United States): cultural term for middle-class, traditionally minded Americans, also the interior states or the Midwest; no official boundaries, emerged politically in the late 1960s.

Middle America Trench

The Middle America Trench is a Pacific Ocean trench off Mexico and Central America where the Cocos and Rivera plates subduct beneath the North American and Caribbean plates.

Middle Amu Darya

Middle Amu Darya: FEOW freshwater ecoregion 630, the middle and lower-middle Amu Darya basin from south of Urgench upstream to the Vakhsh, Kafirnigan, Surkhandarya, and Kunduz rivers, spanning six Central Asian countries, with endemic sturgeons and heavy irrigation-driven salinization.

Middle Amur

Middle Amur, FEOW freshwater ecoregion 617 (temperate upland rivers, Palearctic), the middle Amur River with Zeya and Bureya catchments in Russia and China; Bureya grayling endemic, autumn keta run extirpated, Zeya and Bureya dams reshape flow.

Middle Andaman

Middle Andaman Island, one of the Great Andaman islands in India's Andaman and Nicobar territory, North and Middle Andaman district; 1535.5 sq km, 62,414 people (2011), seismic zone V, separated by Austen and Homfray's Straits.

Middle aortic syndrome

Middle aortic syndrome (MAS), also called mid-aortic or atypical abdominal coarctation, is rare segmental narrowing of the distal thoracic and abdominal aorta with renal and visceral artery involvement, causing refractory childhood hypertension; 64% idiopathic, treated medically, endovascularly, or surgically.

Middle Assyrian coronation ritual

The Middle Assyrian coronation ritual is a ritual text from Aššur, Iraq, preserved on about half of a clay tablet, describing the king's re-investiture as priest before the god Aššur.

Middle Assyrian Empire

The Middle Assyrian Empire, called māt Aššur, was the Assyrian state centered on Aššur from about 1400 to 1000 BC, rising to great-power rank under Ashur-uballit I.

Middle Assyrian Palace Decrees

The Middle Assyrian Palace Decrees, also called the Palace Edicts, are Akkadian regulations governing the Assyrian royal palace and its women, issued by nine kings and compiled around 1100 BC.

Middle Awash

The Middle Awash is a paleoanthropological research area in the Afar rift of Ethiopia whose sediments record six million years, yielding Ardi, Australopithecus garhi, and early Homo sapiens.

Middle back pain

Middle back pain, or thoracic spine pain, is pain in the T1–T12 spine between neck and rib cage. Less common than low back pain; causes include posture, strain, discs, and, rarely, fracture or cancer.

Middle Brahmaputra

The Middle Brahmaputra is a freshwater ecoregion covering the tropical and subtropical upland rivers of the middle Brahmaputra basin in India, Bhutan, and southeast Tibet.

Middle Bridge

Middle Bridge: name shared by several historic bridges, chiefly Robert Mylne's Grade I listed 1782-84 stone arch over the River Test at Romsey, Hampshire; also bridges in Basel, Mississauga, the Tower of London, and Missouri.

Middle cerebral artery

Middle cerebral artery (MCA), arteria cerebri media: major brain artery from the internal carotid supplying the lateral hemisphere; four segments M1–M4, lenticulostriate perforators, and the most common site of ischemic stroke and cerebral aneurysms.

Middle cerebral artery occlusion model

The middle cerebral artery occlusion (MCAO) model is a rodent surgical stroke model in which a filament blocks the artery without craniectomy, producing focal cerebral ischemia.

Middle cerebral artery syndrome

Middle cerebral artery syndrome: deficits from occlusion of the MCA, the most common stroke site (50.8% of rehab cohort). Causes contralateral weakness, aphasia or neglect; proximal occlusion has 87% poor outcome untreated; treated by thrombolysis and thrombectomy.

Middle child syndrome

Middle child syndrome is a popular, hypothetical condition attributed to middle-born children, rooted in Alfred Adler's birth order theory. Large studies find no consistent personality effects, though a 2024 study found small prosocial-trait differences.

Middle Chinese

Middle Chinese (中古汉语, Zhonggu Hanyu), also called Medieval Chinese or the Qieyun system: the stage of Chinese defined by the Qieyun rhyme dictionary (601 CE, 193 rhymes) and Guangyun (206 rhymes), reconstructed via fanqie spellings, rhyme tables, dialects, and Sinoxenic loanwords.

Middle class

The middle class is the broad stratum of households between the poor and the affluent, defined variously by income relative to the national median, occupation, or education.

Middle Class (film)

Middle Class is a 2025 Tamil comedy-drama, Kishore Muthuramalingam's directorial debut, starring Munishkanth and Vijayalakshmi. Released 21 November 2025, it follows Karl Marx, who loses a 1-crore cheque from his late father; it streamed on Zee5 from 24 December 2025.

Middle Class Abbayi (మిడిల్ క్లాస్ అబ్బాయి)

Middle Class Abbayi (MCA, మిడిల్ క్లాస్ అబ్బాయి) is a 2017 Telugu action comedy-drama directed by Venu Sriram, starring Nani, Sai Pallavi, and Bhumika Chawla, produced by Dil Raju, released 21 December 2017, grossing over Rs 35 crore.

Middle Class Melodies

Middle Class Melodies is a 2020 Telugu comedy-drama, Vinod Anantoju's debut, starring Anand Deverakonda and Varsha Bollamma. Released on Amazon Prime Video on 20 November 2020, it follows Raghava's attempt to open a tiffin center in Guntur around his Bombay chutney.

Middle Colonies

The Middle Colonies were New York, New Jersey, Pennsylvania, and Delaware in British America, known for wheat and flour exports, wide European immigration, religious pluralism with voluntary churches, and Penn's tolerant Pennsylvania.

Middle ear

The middle ear (tympanic cavity) is the air-filled space behind the eardrum holding the malleus, incus, and stapes, which transmit and amplify sound to the inner ear, ventilated by the eustachian tube.

Middle ear myoclonus

Middle ear myoclonus (MEM), also called tensor tympani syndrome, is a rare tinnitus from involuntary contraction of the stapedius or tensor tympani muscles, causing rhythmic clicking or buzzing, treated with medications, botulinum toxin, or tenotomy.

Middle ear neuroendocrine tumor

Middle ear neuroendocrine tumor (MeNET), formerly called middle ear adenoma, is a rare tumor of the middle ear causing hearing loss and tinnitus, treated by surgical excision.