The Collaborative International Dictionary of English v.0.48:
Tracklayer \Track"lay`er\, n. (Railroads) Any workman engaged in work involved in putting the track in place. [U. S. & Canada] -- Track"lay`ing, n. [Webster 1913 Suppl.]WordNet (r) 3.0 (2006):
tracklayer n 1: a workman who lays and repairs railroad tracks [syn: platelayer, tracklayer]