rooter

1. (by extension) A type of heavy machinery similar to a plow for breaking up soil, concrete, asphalt, etc.Examples: "The five rooters or plows are so fastened in the frame that any one or all can be removed if desired, and each rooter is provided with a removable point, which can be taken off and sharpened without removing the entire rooter from the from the frame."; "Breaking old concrete is a simple task for powerful tractor and rooter if the teeth are hooked under slab edge and pulled forward, then raised up by rooter's cable lift."; "If the airstrip site is on hard and rocky terrain, it will be necessary to loosen and break the soil by using a rooter."broadly

2. (woodworking) A blade for producing a narrow groove in a piece of wood.Examples: "In cutting across the grain a small steel cutter, No. 10, must first be used in a similar manner, moving the strip of wood which acts as a gauge, to cut the second line exactly the same width as the "rooter" blade; the "rooter" is then used as before, when the piece between the two lines made by the cutter will be neatly removed without leaving a burr, which would not be the case if the "rooter" was alone used across the grain."

3. (computing) A type of malware that obtains and runs using privileged access, bypassing normal security systems.Examples: "In 2002 a new variant of auto-rooters was discovered in the wild: mass-rooters."; "The structure of a rooter is a fixed package: a program that generates fixed shell code with a fixed payload, launching it at a single target chosen by the attacker."