quadruplet meaning and definition

QUADRUPLET noun

Definition of quadruplet (noun)

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