Definitions for: Lagging

[n] used to wrap around pipes or boilers or laid in attics to prevent loss of heat

Webster (1913) Definition: Lag"ging, n.
1. (Mach.) The clothing (esp., an outer, wooden covering), as
of a steam cylinder, applied to prevent the radiation of
heat; a covering of lags; -- called also deading and
cleading.

2. Lags, collectively; narrow planks extending from one rib
to another in the centering of arches.

See Also: insulant, insulating material, insulation