groundsheet

Etymology

From ground + sheet.

groundsheet means A sheet of waterproof material that is spread on the ground, often beneath a tent, and upon which a person may sit or sleep. Lexicurio rates it Sui generis — a strength score of 87 out of 100.

noun

A sheet of waterproof material that is spread on the ground, often beneath a tent, and upon which a person may sit or sleep.