1. the interlocking or interweaving of finger-like projections or structures
Usage: commonly used in anatomy and biology
2. the process or result of structures fitting together like interlaced fingers
Usage: technical term used in geology, materials science, and medicine

Examples

• The interdigitation of muscle fibers allows for strong contractions.
• Interdigitation between the two bone surfaces provides stability to the joint.
• The roots of neighboring trees show interdigitation as they grow together.
• In geology, interdigitation of rock layers indicates complex depositional patterns.
• The interdigitation of the epithelial cells increases surface area for absorption.
• Dental interdigitation refers to how upper and lower teeth fit together when biting.