noun
- red or purple dyes obtained from lichens, especially used historically for coloring textiles
Usage: technical; historical
Examples
- The medieval tapestries were colored with orceins extracted from coastal lichens.
- Orceins provided vibrant purple hues before synthetic dyes became available.
- The chemist studied the molecular structure of orceins found in various lichen species.
- Traditional Scottish weavers used orceins to create rich crimson fabrics.
- Museum conservators identified orceins in the ancient textile fragments.