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A thin, often tapered piece of material, such as wood, stone, or metal, used to fill gaps, make something level, or adjust something to fit properly.
tr.v. shimmed, shim·ming, shims
To fill in, level, or adjust by using shims or a shim.
1. (Mechanical Engineering) a thin packing strip or washer often used with a number of similar washers or strips to adjust a clearance for gears, etc
2. (General Physics) physics a thin strip of magnetic material, such as soft iron, used to adjust a magnetic field
vb, shims, shimming or shimmed
(General Physics) (tr) to modify a load, clearance, or magnetic field by the use of shims
[C18: origin unknown]
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.
Past participle: shimmed