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