![]() In our 2004 survey, 65 percent accepted the sentence Pressure to marry may cause precipitous decision-making that is not grounded in the reality of who you are and what you want from life.įarlex Trivia Dictionary. The identity of the precipitate can often be determined by examining solubility rules. This can occur when solutions containing ionic compounds are mixed and an insoluble product is formed. In fact, a majority of the Usage Panel now accepts this usage. A precipitate is a solid formed in a chemical reaction that is different from either of the reactants. After all a precipitous increase in reports of measles is also an abrupt or sudden event. chemical precipitation, formation of a separable solid substance from a solution, either by converting the substance into an insoluble form or by changing the composition of the solvent to diminish the solubility of the substance in it. Many people object to this usage out of a desire to keep precipitate and precipitous distinct, but the extension of meaning from "steep" to "abrupt" is perfectly natural. from the GNU version of the Collaborative International Dictionary of English. Is the likelihood, expressed as a percent, of a measurable precipitation event (1/100th of an inch) at a grid. In chem., to separate from a solution as a precipitate. 12-hour Probability of Precipitation (PoP12). Some reactions depend on temperature, such as solutions used for buffers, whereas others are dependent only on solution concentration. The determining factors of the formation of a precipitate can vary. to separate (a substance) in solid form from a solution, as by means of a reagent. Precipitates are insoluble ionic solid products of a reaction, formed when certain cations and anions combine in an aqueous solution. to cast violently or abruptly: to precipitate oneself into a struggle. ![]() ![]() ![]() To make haste hurry proceed without deliberation. to hasten the occurrence of bring about prematurely or suddenly: to precipitate a crisis. To hasten intemperately or rashly hence, to spoil ruin. But precipitous and precipitously are also frequently used to mean "abrupt, hasty," which takes them into territory that would ordinarily belong to precipitate and precipitately: their precipitous decision to leave. To hasten bring hastily to pass hurry up: as, to precipitate a flight. Precipitous currently means "steep" in both literal and figurative senses: the precipitous rapids of the upper river a precipitous drop in commodity prices. Definition of precipitate a precipitated solid substance in suspension or after settling or filtering bring about abruptly separate as a fine suspension of. In precipitation, the solute particles find each other and form a solid together. In dissolution, the solute particles separate from each other and are surrounded by solvent molecules. It is the opposite of dissolution or solvation. (Water molecules are omitted from molecular views of the solutions for clarity.Usage Note: The adjective precipitate and the adverb precipitately were once applied to physical steepness but are now used primarily of rash, headlong actions: Their precipitate entry into the foreign markets led to disaster. Precipitation is the process of a compound coming out of solution. Because no net reaction occurs, the only effect is to dilute each solution with the other.
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