precipitate

verb

• 1cause (an event or situation, typically one that is undesirable) to happen suddenly, unexpectedly, or prematurely:the incident precipitated a political crisis
• [with object and adverbial of direction] cause to move suddenly and with force:suddenly the ladder broke, precipitating them down into a heap
• (precipitate someone/thing into) send someone or something suddenly into a particular state or condition:they were precipitated into a conflict for which they were quite unprepared

• 2 Chemistry cause (a substance) to be deposited in solid form from a solution: cell proteins were then precipitated and washed in 10% trichloroacetic acid
• cause (drops of moisture or particles of dust) to be deposited from the atmosphere or from a vapour or suspension: excess moisture is precipitated as rain, fog, mist, or dew

adjective

• done, made, or acting suddenly or without careful consideration:I must apologize for my staff—their actions were precipitate
• occurring suddenly or abruptly:a precipitate decline in Labour fortunes

noun

• a substance precipitated from a solution.