1. a large vat or tub used in dyeing or bleaching cloth
Usage: textile industry term; also spelled 'kier'

Examples

• The fabric was immersed in the keir for several hours during the dyeing process.
• Workers filled the keir with hot water and dye before processing the cotton.
• The textile mill had multiple keirs arranged in rows for batch processing.
• The keir temperature must be carefully controlled to achieve the desired color.