Beating

[1] The subjective difference tone when two sound waves of nearly equal frequencies are simultaneously applied to one ear. It appears as a regular increase and decrease of the combined intensity.
[2] Process for partially breaking down the cell-wall structure of cellulose fibers in water before forming paper sheet.
[3] Process for removing heavy impurities from matted, raw natural textile fibers in the opening and scutching process.
[4] The spare threads available during the weaving of wool to replace missing warp threads in the mending process.
See also off-the-dolly panel beating, on-the-dolly panel beating, panel beating, spring beating