1. Plural of pyronine; a class of synthetic dyes derived from xanthene, typically red or magenta in color, used in textile dyeing and as biological stains.
Usage: technical; chemistry

Examples

• Pyronines are commonly used in laboratories to stain RNA in cells.
• The textile industry employs pyronines to produce vibrant red fabrics.
• Pyronine Y is one of the most widely used members of the pyronines family.
• Researchers selected pyronines for their fluorescent properties in microscopy.