Triad 497854 225765804 2008-07-15T08:39:17Z 68.148.164.166 {{wiktionarypar|triad}} {{TOCright}} A '''triad''', a group of [[3 (number)|three]], may refer to: *[[Triad (Greek philosophy)]], Pythagorean symbol for the number three *[[Triad (music)]], set of three notes, most commonly forming a diatonic tertian chord *[[Triad (relationship)]], term for a relationship between three people *[[Triad (religious)]] three deities commonly associated together; three deities forming a group with common associations; three deities thought of as three phases of one deity; or three entities thought of as aspects of one deity (e.g. the "great goddess" or [[Triple Goddess]] - grandmother, mother, and daughter or, crone, matron, and maiden, and in [[Catholicism]] - father, son, spirit); [[triple deities]] *[[Triad (sociology)]], term for a group of three people as a unit of study *[[Welsh Triads]], collections of Medieval Welsh legend and history *[[Triplism]] frequently occurring in religion and mythology ==Medicine== In medicine, a triad often refers to three [[symptom]]s of a [[syndrome]], such as the following. *[[Triad (anatomy)]], structure in skeletal muscles, formed by a T tubule surrounded by sarcoplasmic reticulum *[[Catalytic triad]], biochemical term for three amino acid residues found within some proteases *[[Beck's triad (cardiology)]], three typical symptoms of cardiac tamponade *[[Beck's cognitive triad]], three types of negative thought present in depression *[[Charcot's triad]], either of two sets of clinical signs, relating to multiple sclerosis or ascending cholangitis *[[Cushing's triad]], a set of three signs showed by patients with head injuries *[[Dieulafoy's triad]], a classic sign of acute appendicitis *[[Female athlete triad]], three symptoms of low energy availability in female athletes *[[Hutchinson's triad]], a common pattern of presentation for congenital syphilis *[[Meckler's triad]], used to diagnose [[Boerhaave syndrome]] *[[Virchow's triad]], a set of three signs attributed to Rudolf Virchow describing the pathogenesis of venous thrombosis *[[Whipple's triad]], a set of three conditions proving hypoglycemia as the cause of a person's symptoms *[[MacDonald triad]], three childhood traits that are associated with anti-social personality disorder ==Organizations, brands, and products== *[[Triad (environmental science)]], management system for environmental cleanup *[[Triad (underground societies)]], Chinese organized crime groups *[[National_Grid_UK#Triad_Demand|Triad Demand]], UK electrical power demand measurement ==Placenames== *The [[Piedmont Triad]], North Carolina, USA region ==Computing== *[[Triad (computers)]], group of three phosphor dots used in some computer monitors *[[Triad C64]], Commodore 64 cracking group *''[[Rise of the Triad]]'', computer game ==Popular culture== *[[Triad (Battlestar Galactica)]], fictional ball sport *[[The Triad (Charmed)]], fictional group of three powerful demons *[[Triiad]], a fictional alien species from the television series ''Hypernauts'' *[[Triad (superhero)]], alias of fictional DC Comics super hero Triplicate Girl *Triad, a 1967 song by [[David Crosby]], with versions recorded by Jefferson Airplane on ''[[Crown of Creation]]'', by [[Crosby, Stills & Nash (and Young)|Crosby, Stills Nash & Young]] on ''[[Four Way Street]]'', and by the Byrds on ''[[The Notorious Byrd Brothers]]'' *[[Triad (album)]], a 1976 album by [[Spontaneous Combustion (band)|Spontaneous Combustion]]. *Triad, a song by [[Tool (band)|Tool]] from their 2001 album ''[[Lateralus]]'' *The Hong Kong Triad, a song by Thievery Corporation from their 2000 album ''[[The Mirror Conspiracy]]'' ==See also== [[National Grid (UK)#Triad demand|National Grid (UK): Triad demand]] {{disambig}} [[de:Triade]] [[fr:Triade]] [[it:Triade]] [[nl:Triade]] [[sl:Triada]] [[sr:Тријада (вишезначна одредница)]] [[sv:Triad]]