All articles starting with S
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Sarcoramphus
Sarcoramphus is a monotypic New World vulture genus (Duméril, 1805) whose sole living species is the king vulture, Sarcoramphus papa, a white, brightly headed tropical forest scavenger ranging from southern Mexico to northern Argentina.
Sarcosine
Sarcosine, also called N-methylglycine, is a non-proteinogenic amino acid that is the N-methyl derivative of glycine, studied as a prostate cancer marker after a 2009 study.
Sarcosine dehydrogenase
Sarcosine dehydrogenase (SARDH, EC 1.5.99.1), a covalent-FAD mitochondrial matrix enzyme, demethylates sarcosine to glycine, feeding one-carbon units into tetrahydrofolate; deficiency causes benign sarcosinemia.
Sarcosine oxidase, monomeric
Monomeric sarcosine oxidase (MSOX, mSox), EC 1.5.3.1, a ~44 kDa bacterial flavoenzyme with covalently bound FAD (8α-S-cysteinyl to Cys315), oxidizes sarcosine to glycine, formaldehyde, and H2O2; used in creatinine assays.
Sarcosinemia
Sarcosinemia (hypersarcosinemia, sarcosine dehydrogenase deficiency, OMIM 268900) is a rare autosomal recessive inborn error of metabolism with elevated sarcosine in plasma and urine due to SARDH deficiency; considered benign.
Sarcospan
Sarcospan (SSPN, also KRAG/NSPN/SPN1/SPN2/DAGA5) is a 25-kDa tetraspan-like, four-pass transmembrane protein of the dystrophin- and utrophin-glycoprotein complexes in muscle; gene on 12p11.2, no human disease mutations, overexpression ameliorates mdx dystrophy.
Sarcosuchus
Sarcosuchus, especially Sarcosuchus imperator (SuperCroc), a giant pholidosaurid crocodyliform from the Early Cretaceous of Niger and Tunisia, about 11–12 m long, 8 tons, with a narial bulla, generalized diet of fish and dinosaurs, fluvial habitat.
Sarcothalia crispata
Sarcothalia crispata (luga negra), a red alga (Gigartinaceae) endemic to Chile from Valparaíso to Tierra del Fuego and also in Argentina, harvested since the 1960s for its kappa-lambda carrageenan and studied for cultivation and heavy-metal bioindication.
Sard's theorem
Sard's theorem, also known as the Morse-Sard theorem, is a result in differential topology stating that the critical values of a smooth map between manifolds have measure zero.
Sarda sarda
Sarda sarda, the Atlantic bonito, is a coastal pelagic Scombridae small tuna of the Atlantic, Mediterranean, and Black Sea; striped, fast-growing, heavily fished, and largely unmanaged in U.S. waters.
Sardaar Gabbar Singh (సర్దార్ గబ్బర్ సింగ్)
Sardaar Gabbar Singh (సర్దార్ గబ్బర్ సింగ్), 2016 Telugu action comedy sequel to Gabbar Singh, directed by Bobby, written by and starring Pawan Kalyan with Kajal Aggarwal; record opening, then a box office failure.
Sardaar Ji (ਸਰਦਾਰ ਜੀ)
Sardaar Ji (ਸਰਦਾਰ ਜੀ) is a 2015 Punjabi supernatural romantic comedy directed by Rohit Jugraj, starring Diljit Dosanjh as ghost hunter Jaggi with Neeru Bajwa and Mandy Takhar; it earned about ₹15 crore in a week and spawned 2016 and 2025 sequels.
Sardaar Ji 3 (ਸਰਦਾਰ ਜੀ 3)
Sardaar Ji 3 (ਸਰਦਾਰ ਜੀ 3) is a 2025 Punjabi horror-comedy, third in the Sardaar Ji franchise, directed by Amar Hundal, starring Diljit Dosanjh, Neeru Bajwa, and Pakistani actor Hania Aamir. Released overseas June 27, 2025, it was withheld from India over the Pakistani co-star casting after the Pahalgam attack, yet set overseas box-office records.
Sardar (سردار)
Sardar (سردار), from Persian sar (head) + dar (possessor), is a title meaning chief, leader, or commander. Used for tribal chiefs in Balochistan, military officers in Iran, and as the courtesy title for Sikh men in India.
Sardar (सरदार) (1993 film)
Sardar (सरदार) is a 1993 Hindi biographical drama on Sardar Vallabhbhai Patel, directed by Ketan Mehta, written by Vijay Tendulkar, starring Paresh Rawal; distinct from the 2022 Tamil spy thriller Sardar.
Sardar (சர்தார்) (2022 film)
Sardar (சர்தார்) is a 2022 Tamil spy action thriller directed by PS Mithran, starring Karthi in a dual role as a disgraced spy and his police-inspector son, released 21 October 2022 by Prince Pictures, with a 2026 sequel Sardar 2.
Sardar 2
Sardar 2 (சர்தார் 2), a 2026 Tamil spy action thriller by P.S. Mithran, sequel to Sardar (2022); Karthi in dual roles with S.J. Suryah; released 10 September 2026, flopped, streamed on Prime Video.
Sardar Assad
Sardar Assad (سردار اسعد), formally Hajji Aliqoli Khan, was a Bakhtiari tribal chief who led the 1909 capture of Tehran, deposing Mohammad Ali Shah, and later served as Iran's minister of the interior and of war.
Sardar Ayaz Sadiq
Sardar Ayaz Sadiq, born in 1954 in Lahore, is a PML-N politician elected three times as Speaker of Pakistan's National Assembly, in 2013, 2015, and 2024.
Sardar Azmoun
Sardar Azmoun (سردار آزمون), born 1995, Iranian striker for Shabab Al-Ahli Dubai; ex-Zenit, Bayer Leverkusen, Roma; 57 goals in 91 Iran caps, second all-time; excluded from 2026 World Cup squad.
Sardar Ka Grandson
Sardar Ka Grandson (सरदार का पोता) is a 2021 Hindi Netflix comedy-drama directed by Kaashvie Nair, starring Arjun Kapoor and Neena Gupta; a grandson tries to move his grandmother's 1946 Lahore house to India.
Sardar Paparayudu
Sardar Paparayudu (సర్దార్ పాపారాయుడు), also spelled Sardar Papa Rayudu, is a 1980 Telugu action drama directed by Dasari Narayana Rao, starring N.T. Rama Rao in a father-son double role as a framed freedom fighter and his policeman son, with Sridevi and Sharada; it preceded NTR's entry into politics.
Sardar Saleem Haider Khan
Sardar Saleem Haider Khan is a Pakistani politician of the Pakistan People's Party serving as Governor of Punjab, where he advocates economic self-reliance and domestic solar manufacturing.
Sardar Sarovar Dam (સરદાર સરોવર ડેમ)
The Sardar Sarovar Dam is a 163 m high concrete gravity dam on the Narmada river in Gujarat, India, part of a project supplying irrigation, drinking water, and power.
Sardar Singh of Jodhpur
Sardar Singh of Jodhpur (सरदार सिंह) was Maharaja of the Rajputana princely state of Jodhpur, reigning from 1895, when he succeeded his father Jaswant Singh II, until his death in 1911.
Sardar Udham
Sardar Udham (सरदार उधम), 2021 Hindi biographical drama by Shoojit Sircar on revolutionary Udham Singh, who shot Michael O'Dwyer in 1940 to avenge Jallianwala Bagh; stars Vicky Kaushal, streamed on Prime Video, won the National Award for Best Hindi film.
Sardar Vallabhbhai Patel National Police Academy (सरदार वल्लभभाई पटेल)
SVPNPA (सरदार वल्लभभाई पटेल राष्ट्रीय पुलिस अकादमी), founded 1948 at Mount Abu and moved to Hyderabad in 1975, is India's premier training academy for Indian Police Service officers, running the 49-week IPS Basic Course, induction and mid-career training.
Sardari Begum (सरदारी बेगम)
Sardari Begum (सरदारी बेगम) is Shyam Benegal's 1996 Urdu musical drama about a thumri singer killed in a riot, told Rashomon-style by her journalist niece; it won the National Award for Best Feature Film in Urdu.
Sardine
Sardine, also pilchard, is a common name for small schooling clupeid fishes such as Sardina pilchardus and Sardinops sagax, fished worldwide for canned food and fishmeal; the U.S. Pacific sardine fishery is closed below a 150,000 metric ton cutoff.
Sardinella brasiliensis
Sardinella brasiliensis (Brazilian sardinella, sardinha-verdadeira), a western Atlantic clupeid sardine from the Gulf of Mexico to Uruguay; main marketed sardine in Brazil, possibly conspecific with Sardinella aurita, closed season October to February.