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Noun: quadruplet  kwód-rûp-lut
  1. The cardinal number that is the sum of three and one
    - four, 4, IV, tetrad, quatern, quaternion, quaternary, quaternity, quartet, foursome, Little Joe
  2. One of four children born at the same time from the same pregnancy
    - quad
  3. A set of four similar things considered as a unit
    - quartet, quartette, quadruple

Derived forms: quadruplets

Type of: digit, figure, set, sib, sibling

Encyclopedia: Quadruplet