from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A group or set of three of one kind.
  • n. One of three children born at one birth.
  • n. A group of three lines of verse.
  • n. Music A group of three notes having the time value of two notes of the same kind. Also called tercet.
  • n. Physics A multiplet with three components.
  • n. Genetics A unit of three successive nucleotides in a molecule of DNA or RNA that codes for a specific amino acid; a codon or anticodon.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A group of three.
  • n. One one of a group of three.
  • n. One of a group of three siblings born at the same time to the same mother.
  • n. A group of three notes played or written where two notes would ordinarily be; a form of tuplet.
  • n. A triquark.

from the GNU version of the Collaborative International Dictionary of English

  • n. A collection or combination of three of a kind; three united.
  • n. Three verses rhyming together.
  • n. A group of three notes sung or played in the tree of two.
  • n. Three children or offspring born at one birth.

from The Century Dictionary and Cyclopedia

  • n. A bicycle for three riders.
  • n. A collection or combination of three of a kind, or three united.
  • n. In poetry, three verses or lines riming together.
  • n. In music, a group of three tones to be performed in the time of two or four. Such groups are marked. . Compare sextuplet, decimole, etc.
  • n. A combination of three plano-convex lenses in a compound microscope, which serves to render the object clear and distinct, and free from distortion—an improvement upon the doublet (see doublet, 2); also, a hand-microscope consisting of three double-convex lenses.
  • n. In mathematics, a system of three families of surfaces such that one of each family passes through each point of space.
  • n. One of three children born at one birth.
  • n. plural Three links of chain, generally used to connect the cable with the anchor-ring.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the cardinal number that is the sum of one and one and one
  • n. one of three offspring born at the same time from the same pregnancy
  • n. a set of three similar things considered as a unit


from The American Heritage® Dictionary of the English Language, 4th Edition

tripl(e) + (doubl)et.


  • Consider a certain triplet in relation to the triplet which is complementary to it on the other chain of the double helix.

    Francis Crick - Nobel Lecture

  • Thus if the first triplet is UCC, we consider it in relation to either AGG or (reading in the opposite direction) GGA.

    Francis Crick - Nobel Lecture

  • The Divine Comedy is written in the _terza rima_, which consists of three verses arranged in such a way that the middle line of each triplet rhymes with the first or third verse of the succeeding triplet.

    National Epics

  • The effect of the triplet is the same: the ear has been accustomed to expect a new rhyme in every couplet; but is on a sudden surprised with three rhymes together, to which the reader could not accommodate his voice, did he not obtain notice of the change from the braces of the margins.

    Lives of the Poets, Volume 1

  • Each Gabor patch was then defined as a triplet of bin values are the bins of hue, frequency, and orientation respectively of Gabor patch.

    PLoS ONE Alerts: New Articles

  • At 23, I have concluded that being a triplet is a constant reminder of my mediocrity.

    The Globe and Mail - Home RSS feed

  • And then he found out that Phoebe had a twin, and that Laura Marinos was their 'triplet'.

    blu94anjel Diary Entry

  • If the Trips,” she said, referring to her triplet grandchildren, “hadn’t brought you here that special Christmas almost three years ago, I might never have gotten to know you.

    Family Blessings

  • The keys to riding a "triplet" are clear communication, well-choreographed precision and plenty of trust.


  • AR coding sequence polymorphisms such as triplet repeats are not associated with AGA

    PLoS ONE Alerts: New Articles


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  • Merriam-Webster says "triplet" has two syllables. However, drumming students are frequently taught to vocalise "trip-puh-lit" when learning to play this rhythm of three notes evenly spaced in one count.

    December 4, 2006