1. a ridge of hard snow formed by wind erosion, typically found in polar regions
Usage: meteorology; geography

Examples

• The Antarctic explorers had to navigate carefully around the sharp sastruga formations.
• Wind-carved sastruga made the terrain extremely difficult to traverse.
• The sled dogs struggled to pull the equipment over the jagged sastruga.
• Sastruga can reach heights of several feet in areas with strong prevailing winds.
• The research team studied how sastruga formations affect local wind patterns.
• Crossing the sastruga field required special equipment and extreme caution.