emergency (redirected from Water purification)

emergency n. a sudden, unforeseen happening which requires action to correct or to protect lives and/or property.

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emergency noun accident, casus, climacteric, condiiion of insufficiency, crisis, critical point, crucial period, difficulty, dilemma, discrimen, exigency, extremity, insuffiiiency of service, last minute need, necessitousness, need, need for action, plight, predicament, pressing necessity, pressing need, strait, sudden peril, tempus, unexpected happening, unforeseen condition, unforeeeen occurrence, urgency
Associated concepts: Emergency Court of Appeals, Emergency Defense Act, emergency employment doctrine, Emergency Price Control Act, private necessity, public emergency, public necessity

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See also: casualty, catastrophe, debacle, disaster, peril, plight, predicament, quagmire