1. a series of ridges, furrows, or linear marks
2. parallel grooves or scratches on a surface, especially those made by glacial action
Usage: geology
3. alternating light and dark bands in muscle tissue
Usage: anatomy

Examples

• The rock face showed clear striations from ancient glacial movement.
• Under the microscope, we could see the striations in the muscle fibers.
• The geologist pointed out the striations carved into the limestone.
• Striations on the bullet helped forensic experts identify the weapon.
• The marble’s natural striations created beautiful patterns.
• Ice age striations are still visible on the mountain’s surface.