[1] : The Collaborative International Dictionary of English v.0.48

quadruplet \quad"ruplet\, n. from quadruple.
   1. a collection or combination of four of a kind.
      webster 1913 suppl.

   2. pl. four children born in the same labor.
      webster 1913 suppl.

   3. a cycle for carrying four riders, so arranged that all the
      riders can assist in the propulsion.
      webster 1913 suppl.
see also:
quadruple 

[2] : WordNet (r) 2.0

quadruplet
     n 1: the cardinal number that is the sum of three and one syn: 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 syn: quad
     3: a set of four similar things considered as a unit syn: quartet,
         quartette
see also:
four 4 iv tetrad quatern quaternion 
quaternary quaternity quartet foursome little joe 
quad quartette 

Quadruplet >> Q Words
Quadruplet, definition of term: Quadruplet
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