Lagging is an insulation membrane that is used to cover hot water pipes to keep the temperature constant from the heater to the service point. Lagging today is formed onto the copper tube as a manufactured product. Older methods employed included asbestos lagging and hemp types.
The extent to which a rotor of a gyroplane in flight is displaced rearwards by air resistance from its normal position relative to the rotor head. The amount of lag is limited by the action of the drag pivot, a damping device which gives the rotor flexibility in the plane of rotation.
Deliberately setting the start, or finish, of on activity behind the start, or finish, of another. A scheduling technique necessary to enable relatively concurrent progress on more than one activity. [D02925] RMW