To move through the air by virtue of gravity or momentum; to volplane.

Movement of a glider, aëroplane, etc., through the air under gravity or its own movement.

The gradual descent of an aeroplane with gravity alone providing the motive power.

The slow sliding of the snow cover along the ground under the influence of gravity on a slope. The amount of glide is highly dependent on ground roughness and character. It is not the same as creep. The total displacement of the snow surface on a slope is the sum of creep, glide, and settlement.

The slow, downhill movement of the snow cover over the ground surface. May be accelerated by the presence of water in the form of rain.