quadruplet n the cardinal number that is the sum of three and one n one of four children born at the same time from the same pregnancy n a set of four similar things considered as a unit Synonym(s) four 4 IV tetrad quatern quaternion quaternary quaternity quartet foursome Little Joe quad quartette quadruple
News & Articles quadruplet It's a special Father's Day for dad of quads HOPATCONG -- This year Brian Garland will celebrate Father's Day on the run. Garland intends to take part in a local 5K race with his 16-year-old quadruplet children. June 16, 2013 - New Jersey Herald