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

pacesetter \pacesetter\ n.
   a horse used to set the pace in racing.

   syn: pacer, pacemaker.
        wordnet 1.5

[2] : WordNet (r) 2.0

pacesetter
     n 1: a leading instance in its field; "the new policy will be a
          pacesetter in community relations" syn: pacemaker
     2: a horse used to set the pace in racing syn: pacer, pacemaker
see also:
pacemaker pacer 

[3] : Moby Thesaurus II by Grady Ward, 1.0

24 moby thesaurus words for "pacesetter":
   mahdi, bell cow, bell mare, bellwether, born leader,
   charismatic leader, choirmaster, choragus, conductor, coryphaeus,
   duce, file leader, forerunner, fugleman, inspired leader, leader,
   leader of men, messiah, pacemaker, precentor, ringleader,
   standard-bearer, symphonic conductor, torchbearer

Pacesetter >> P Words
Pacesetter, definition of term: Pacesetter
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