Meaning of ultimatum

ul•ti•ma•tum

Pronunciation: (ul"tu-mā'tum, -mä'-), [key]
— pl. -tums, -ta
  1. a final, uncompromising demand or set of terms issued by a party to a dispute, the rejection of which may lead to a severance of relations or to the use of force.
  2. a final proposal or statement of conditions.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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