tracklayer definitions WordNet (r) 3.0 (2005) n 1: a workman who lays and repairs railroad tracks [syn: platelayer, tracklayer] Merriam Webster's noun Date: 1853 1. a worker engaged ... tracks (see TRACK(1) n. 7). Webster's 1913 Dictionary Tracklayer Track"lay`er, n. (Railroads) Any workman engaged in work ...