Exodus 16:14

And when the dew had gone up , there was on the face of the wilderness a fine , flake-like thing , fine as frost on the ground .

When the dew was gone, thin flakes like frost on the ground appeared on the desert floor.

And when the dew that lay was gone up, behold, upon the face of the wilderness there lay a small round thing, as small as the hoar frost on the ground.