quadruplet Meaning, Definition & Usage

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

WordNet