a thin slip or wedge of metal, wood, etc., for driving into crevices, as between machine parts to compensate for wear, or beneath bedplates, large stones, etc., to level them.
verb (used with object), shimmed, shimming.
to fill out or bring to a level by inserting a shim or shims.
a thin packing strip or washer often used with a number of similar washers or strips to adjust a clearance for gears, etc
(physics) a thin strip of magnetic material, such as soft iron, used to adjust a magnetic field
verb shims, shimming, shimmed
(transitive) to modify a load, clearance, or magnetic field by the use of shims
jargon, memory management
A small piece of data inserted in order to achieve a desired memory alignment or other addressing property.
For example, the PDP-11 Unix linker, in split I&D (instructions and data) mode, inserts a two-byte shim at location 0 in data space so that no data object will have an address of 0 (and be confused with the C null pointer).
See also loose bytes.
[Jargon File]


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