Triad
A triad, a group of three, may refer to:
Computers
Entertainment
- Triad, a 1967 song by David Crosby, with versions recorded by Jefferson Airplane on Crown of Creation, by Crosby, Stills Nash & Young on Four Way Street, and by the Byrds on The Notorious Byrd Brothers
- Triad, a 1976 album by Spontaneous Combustion.
- Triad, a song by progressive rock band Tool from their 2001 album Lateralus
- The Hong Kong Triad, a song by Thievery Corporation from their 2000 album The Mirror Conspiracy
- Triad (music), set of three notes, most commonly forming a diatonic tertian chord
- The Triad (Charmed), a fictional group of three powerful demons
- Triiad, a fictional alien species from the television series Hypernauts
- Triad, alias of fictional DC Comics super hero Triplicate Girl
History
Medicine
- 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
- Currarino triad, three malformations with a genetic link
- 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
Philosophy
- Triad, Pythagorean symbol for the number three
Places
Relationships
- Triad, term for a relationship between three people,
Religion
- Triad, three deities commonly associated together.
- Triplism frequently occurring in religion and mythology
Science
- Triad, management system for environmental cleanup
- Triad Demand, UK electrical power demand measurement
Societies
- Triad, term for a group of three people as a unit of study
- Triad, a term that describes many branches of (criminal) Chinese underground society, such as those in Hong Kong and around the world
Sport
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