1. Plural of lignin; complex organic polymers that bind cellulose fibers in plant cell walls, providing structural support and rigidity to wood and other plant tissues.
Usage: technical; chemistry/biology; usually used in plural form when referring to multiple instances or types

Examples

• Lignins make up about 20-30% of the dry mass of wood.
• The breakdown of lignins is essential in the pulping process for paper production.
• Different plant species contain varying amounts and types of lignins.
• Lignins provide plants with mechanical strength and resistance to decay.
• Researchers are studying how to extract and use lignins for biofuel production.