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track·lay·ing | \ ˈtrak-ˌlā-iŋ 
\
\Definition of tracklaying
(Entry 1 of 2)
: the laying of tracks on a railway line
tracklaying
adjectiveDefinition of tracklaying (Entry 2 of 2)
: of, relating to, or being a vehicle that travels on two or more endless usually metal belts
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The first known use of tracklaying was in 1852
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