Plural of dyeing; instances or batches of the process of coloring fabrics or other materials with dyes.
From dye plus -ing (forming gerunds and present participles) plus -s (plural). The gerund form became nominalized to refer to specific instances or batches of the dyeing process in textile production.
In textile factories, 'dyeings' is a technical term—each batch of fabric that goes through the dye vat is one dyeing, and companies keep detailed records of every dyeing's temperature, timing, and chemical composition.
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