Any or all of the forms of water particles, whether liquid or solid, that fall from the upper atmosphere (e.g., rain, hail, snow or sleet). It is a major class of hydrometeor, but it is distinguished from cloud, fog, dew, rime, frost, etc., in that it must fall. It is distinguished from cloud and virga in that it must reach the ground.
A hurried headlong fall.
Unwise or rash rapidity; sudden haste.
A reaction that leads to the formation of a heavier solid in a lighter liquid; the precipitate so formed at the bottom of the container.
The distance by which one wave is behind another.
The extent to which anything is retarded; the result of any retarding or delay; mental, social, or physical slowness.
Deceleration; reduction in the magnitude of velocity.
That which retards; an obstacle; an obstruction.
Extreme stupidity.
A decrease in the speed of telegraph signalling.
A suspension which resolves upwards.
The act of diminishing the rate of speed.