A triplet is a set of three items, and includes in particular: Wikipedia does not have an article with this exact name. ... Wiktionary (a portmanteau of wiki and dictionary) is a multilingual, Web-based project to create a free content dictionary, available in over 150 languages. ...
in music, a tuplet with a duration two-thirds (2/3) the regular note value duration in simple and/or duple meter. An irrational rhythm, it may also be used as a polyrhythm when played against the regular duration. In relation to triple time duple meter rhythms would be duples.
in quantum mechanics, a spin triplet is a set of three quantum states of a system, each with total spinS = 1. The system could consist of a single elementary spin 1 particle such as the W or Z bosons, or be a multiparticle state built out of arbitrary other spin states with total spin one.
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The expansion of triplet repeat sequences is an initial step in the disease etiology of a number of hereditary neurological disorders in humans.
Triplet repeat expansion diseases (TREDs) are characterized by co-incidence between neurological disease manifestation and amplification of specific trinucleotide repeats in different but defined loci.
Increases in the lengths of the translated triplet repeats to 40-100 are associated with disease symptoms, whereas the untranslated triplet repeats to 200-3000 are associated with the disease.
The system could consist of a single elementary spin 1 particle such as the W or Z bosons, or be a multiparticle state built out of arbitrary other spin states with total spin one.