triplet

• A series of three nucleotide bases forming an element of the Genetic code
• J-coupling as part of Nuclear magnetic resonance spectroscopy
• Opal in preparation to be a gemstone
• Spin triplet in quantum mechanics, as in triplet oxygen, or triplet state in general
• Tuple of length 3 in mathematics

• Photography triplet, or paint triplet
• Triplet lens, an optical device consisting of three single lenses
• Tandem bicycle, with three seats

• Triplets, the multiple birth of three children
• Triplet Lakes, a group of lakes in Minnesota
• The Triplets, a Spanish children's book
• The Triplets (band), a Latin pop group
• Binghamton Triplets, a minor league baseball team
• A triplet, a kind of assembled gem
• In music, a tuplet of three successive notes of equal duration
• "The Triplets", Tyler Johnson, Ondrej Palat, and Nikita Kucherov of the 2014–15 Tampa Bay Lightning

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• Triplett (disambiguation)
• Tercet, or tristich, in poetry
• Triad (disambiguation), another general term for a group of three
• Triptych, a work of art which is divided into three sections
• Trilogy

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