Wiktionary
alt. An earthen floor, a floor (in a building) which is simply the ground itself, rather than some covering such as wood or vinyl. n. An earthen floor, a floor (in a building) which is simply the ground itself, rather than some covering such as wood or vinyl.
Usage examples of "earth floor".
Finally, she slipped quietly out of her bed -- she had dug a shallow trench in the earth floor of the cave beside the bed now used by Jondalar -- and felt her way to the cave mouth.
Squatting on the earth floor of his solitary hut, peering intently by firelight and fading daylight, he reached for the long, heavy bundle that lay near the fire and began very gradually to undo its wrappings of gray cloth.
Actually the dry earth floor of their refuge concealed a good supply of wood fragments.