All articles starting with T
35,749 articles
Tetisheri
Tetisheri, also rendered Teta-shera, was a queen of the Theban 17th Dynasty in sixteenth-century BCE Egypt, mother of Seqenenre Tao and grandmother of Ahmose I.
Tetley
Tetley Tea is a British tea brand founded in 1837 by the Tetley brothers, owned by Tata Consumer Products since 2000 and the market leader in Canada.
TETO PRETO
Teto Preto is a Brazilian electronic and performance art group formed in 2014 in São Paulo, founded and fronted by Laura Diaz as resident act of the Mamba Negra party.
Tetomilast
Tetomilast (OPC-6535) is an investigational oral PDE4 inhibitor developed by Otsuka Pharmaceutical for ulcerative colitis, Crohn's disease, and COPD; its phase II and III trials missed primary endpoints and development was discontinued or stalled.
Teton Dam
Teton Dam was a Bureau of Reclamation earthfill dam on the Teton River in Idaho that collapsed during first filling on June 5, 1976, killing 11 people.
Teton Range
The Teton Range is a fault-block range in northwestern Wyoming, lifted less than 10 million years ago by the Teton fault above Jackson Hole; Grand Teton reaches 13,770 feet over 2.7-billion-year-old gneiss.
Tétouan
Tétouan (Titawin, تطوان), city in northern Morocco near the Strait of Gibraltar; capital of the Spanish Protectorate 1912–1956. Its Andalusian-founded medina, walled with seven gates, is a UNESCO World Heritage Site (1997).
Tetr College of Business
Tetr College of Business, founded 2024 by Pratham Mittal, is a business college rotating students across seven countries per term, awarding UK degrees via UBI, backed by Owl Ventures.
Tetra
Tetra is a German manufacturer of aquarium and pond supplies, founded in 1951 by Ulrich Baensch in Hanover and best known for TetraMin, the first flake fish food.
Tetra Pak
Tetra Pak (founded 1951, Sweden, by Ruben Rausing as a subsidiary of Åkerlund & Rausing) is a food packaging company known for tetrahedron and brick beverage cartons and aseptic packaging, sold in over 160 countries.
TETRA Technologies
TETRA Technologies is an American oilfield services and solutions company, founded in 1981 and headquartered in Spring, Texas, that supplies clear brine completion fluids, calcium chloride, and water management services.
Tetra-PEG gels
Tetra-PEG gels are polymer gels made by cross-end-coupling two mutually reactive four-arm poly(ethylene glycol) prepolymers, first fabricated in 2008 and regarded as near-ideal, highly homogeneous networks.
Tetraamelia-multiple malformations syndrome
Tetraamelia-multiple malformations syndrome (Zimmer phocomelia, PAPPA syndrome, ORPHA:3301) is an extremely rare, mostly lethal autosomal recessive disorder with absence of all four limbs plus head, lung, cardiac, and urogenital malformations; WNT3 and RSPO2 are known causes.
Tetrabenazine
Tetrabenazine (brand names Xenazine, Nitoman) is a reversible VMAT2 inhibitor drug used to treat chorea associated with Huntington's disease, the first US drug approved for that disease in 2008.
Tetrabromobisphenol A
Tetrabromobisphenol A (TBBPA) is the world's highest-production-volume brominated flame retardant, used chiefly in epoxy resins for printed circuit boards and as an additive in ABS and polystyrene plastics.
Tetrabutylammonium
Tetrabutylammonium (TBA) is a quaternary ammonium cation, C16H36N+, with four n-butyl chains on nitrogen; its salts, notably tetrabutylammonium bromide, serve as phase-transfer catalysts and as supporting electrolytes in nonaqueous electrochemistry.
Tetrabutylammonium bromide
Tetrabutylammonium bromide (TBAB) is a quaternary ammonium salt, formula C₁₆H₃₆BrN, best known as a standard phase-transfer catalyst and also used as a molten reaction medium and battery electrolyte additive.
Tetrabutylammonium fluoride
Tetrabutylammonium fluoride (TBAF) is a quaternary ammonium salt of fluoride used in organic synthesis, best known as the standard reagent for cleaving silyl protecting groups like TBDMS ethers.
Tetrabutylammonium hydroxide
Tetrabutylammonium hydroxide (TBAH, also TBAOH) is a quaternary ammonium hydroxide with formula (C₄H₉)₄NOH, a strong organic base used chiefly as a titrant for weak acids, a phase-transfer catalyst, and a structure-directing agent in zeolite synthesis.
Tetrabutylammonium iodide
Tetrabutylammonium iodide (TBAI) is a quaternary ammonium salt, formula C16H36IN, a white hygroscopic solid used as a phase-transfer catalyst and iodide source in organic synthesis.
Tetracaine
Tetracaine, also known as amethocaine and sold as Pontocaine, is a long-acting ester local anesthetic synthesized by Otto Eisleb in 1928 and still used for topical and spinal anesthesia.
Tetrachloroethylene
Tetrachloroethylene, also called perchloroethylene or PCE, is a nonflammable, colorless solvent used for dry cleaning and metal degreasing, being phased out by the EPA as a probable carcinogen.
Tetrachlorvinphos
Tetrachlorvinphos (TCVP), also sold as Gardona, Rabon, or Stirofos, is an organophosphate cholinesterase-inhibiting insecticide for fleas, ticks, flies, and lice on livestock and pets; first registered in 1966, banned in the EU since 2003, and classified a possible human carcinogen by EPA and IARC.
Tetrachromacy
Tetrachromacy is possession of four independent color channels, usually four cone types from X-linked opsin heterozygosity in women; strong functional tetrachromacy is rare, weak forms more common, and no online tests are valid.
Tetraclinis articulata
Tetraclinis articulata, the sandarac tree, also known as the arar tree or Barbary thuja, is the sole species of its conifer genus, a Mediterranean evergreen that is the source of sandarac resin.
Tetraconazole
Tetraconazole (CAS 112281-77-3) is a chiral triazole DMI fungicide (FRAC Group 3) inhibiting 14α-demethylase in ergosterol biosynthesis; sold as Domark, Eminent, Mettle, and Trojan for cereals, sugar beet, grapes, and minor crops.
Tetractys (τετρακτύς)
The tetractys (τετρακτύς, Tetraktys) is a triangular figure of ten points in four rows of one, two, three, and four, revered by the Pythagoreans and sworn upon in their oaths.
Tetracyanoethylene
Tetracyanoethylene (TCNE) is an organic compound, C₆N₄, with all four hydrogens of ethylene replaced by cyano groups, making it one of the strongest organic electron acceptors.
Tetracycline
Tetracycline, a broad-spectrum antibiotic of the tetracycline class (chlortetracycline, Aureomycin, doxycycline), made in 1953 from chlortetracycline; bacteriostatic 30S ribosome inhibitor limited by efflux and ribosomal-protection resistance and tooth staining in children.
Tetracycline antibiotics
Tetracycline antibiotics: broad-spectrum bacteriostatic drugs binding the 30S ribosomal subunit; from chlortetracycline (1948) to doxycycline, minocycline, tigecycline, and sarecycline; resistance via efflux pumps and ribosomal protection.