0 an occasion when the influence of particular laws, rules, etc. is reduced: --
1 a reduction of prices, costs, taxes, etc., especially so that they return to a previous level: --
Hill-holder works by holding the brake in position while the driver sets-up and activates the first gear to move the car forward from a complete stop, without fear of roll-back.
Recovery from errors in fault-tolerant systems can be characterised as either roll-forward or roll-back.
Applications needed to be fortified with this check-pointing to allow roll-back of the application on another processor if a hardware failure occurred.
An extension of this system, called the hill-hold function, prevents roll-back when stopping and starting on a hill.
Some systems make use of both roll-forward and roll-back recovery for different errors or different parts of one error.
This tectonic setting provides the source of the lithic fragments, either through arc volcanism, thin-skinned faulting, continental collisions, unroofing, and subduction roll-back.
Those who are in the transition phase also need to know that there will be no roll-back, because they are confused about the messages they are getting.
The memorandum goes on to insist on cuts in social welfare, the roll-back of key public services, and reductions in public sector employment and public sector pensions.
