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

quintuple \quin"tuple\, a. l. quintus fifth: cf. f. quintuple,
   l. quintuplex. cf. quadruple.
   multiplied by five; increased to five times the amount;
   fivefold.
   1913 webster

   quintuple time mus., a time having five beats in a
      measure. it is seldom used.
      1913 webster
see also:
quadruple quintuple time 

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

quintuple \quin"tuple\, v. t. imp.  p. p. quintupled; p.
   pr.  vb. n. quintupling. cf. f. quintupler.
   to make fivefold, or five times as much or many.
   1913 webster
see also:
quintupled quintupling 

[3] : WordNet (r) 2.0

quintuple
     adj : having five units or components syn: fivefold
     v : increase fivefold; "the population of china quintupled"
see also:
fivefold 

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