Precipitate

prih-SIP-ih-tayt (verb), prih-SIP-ih-tit (noun) /prɪˈsɪpɪteɪt/ (verb), /prɪˈsɪpɪtɪt/ (noun)
verbnounC1GRESAT
FormalScientific

(verb) To cause a substance to be deposited in solid form from a solution; to cause (an event or situation, typically one that is undesirable) to happen suddenly, unexpectedly, or prematurely; (noun) A substance precipitated from a solution.

In chemistry, it's a specific process of solid formation. In general usage, it implies a sudden, often negative, outcome.

The story behind the word. The word 'precipitate' comes from the Latin verb 'praecipitare,' meaning 'to throw headlong' or 'to cast down.' This is formed from 'prae-' (before) and 'caput' (head). In chemistry, it describes the solid 'falling down' or 'settling out' of a solution. The general sense of causing something to happen suddenly also retains this idea of 'throwing' an event into motion.

Word relationships

  • Cause: More general; 'precipitate' implies suddenness or a specific chemical process.
  • Trigger: Similar to 'precipitate' in causing a sudden event, but lacks the chemical sense.
  • Sediment: A solid material that settles out of a liquid, but not necessarily formed by a chemical reaction.
  • Dissolve: To cause a solid to pass into a solution.
  • Avert: To prevent an undesirable event from happening.

Word family

  • precipitation (noun): The process of precipitating; rain, snow, or hail.
  • precipitous (adjective): Dangerously high or steep; (of a change) sudden and dramatic.

Collocations

  • precipitate a crisis
  • precipitate out
  • calcium precipitate
  • white precipitate

Example sentences

  • "Adding the silver nitrate solution caused a white solid, silver chloride, to precipitate from the mixture." A chemical reaction causing a solid to form.
  • "The sudden collapse of the stock market helped to precipitate a global economic crisis." An event causing a sudden outcome.

Memory hook

Think of 'precipitate' as a solid 'falling down' or 'heading down' out of a solution, like something being thrown headlong. Falling headlong

When not to use

Do not use 'precipitate' (verb) if you mean to simply 'cause' something; it implies a suddenness or a specific chemical process.

Fun facts

  • The same root 'praecipitare' also gives us the word 'precipice,' a very steep cliff.
  • Precipitation reactions are commonly used in analytical chemistry to identify ions present in a solution.

Related words

Solution, Ion

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