Steep, like a precipice / Headlong / Hasty; rash; quick; sudden

(meteorology) 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.

One who or that which precipitates (causes something to happen or urges it on with vehemence or rashness). / A person who, or device that, carries out precipitation.

plural of precipitator

present participle of precipitate

That falls headlong, or causes a headlong fall. / Rash or impulsive. / Sudden or unexpected. / (chemistry) That causes precipitation.

A substance that forms a precipitate when added to a solution.

plural of precipitant

plural of precipitation

Suddenness; excessive haste.