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Webster 1913 Edition

Pipe laying

Pipe′layˊing

,

Noun.

, or

Pipe′ layˊing

.

1.

The laying of conducting pipes underground, as for water, gas, etc.

2.

(Polit. Cant)

The act or method of making combinations for personal advantage secretly or slyly; – in this sense, usually written as one word.

[U.S.]