from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A deficiency of sodium in the blood.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An abnormally low concentration of sodium (or salt) in blood plasma.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. abnormally low level of sodium in the blood; associated with dehydration


from The American Heritage® Dictionary of the English Language, 4th Edition

hypo- + New Latin natrium, sodium; see hypernatremia + -emia.

from Wiktionary, Creative Commons Attribution/Share-Alike License

From hypo- + Latin natrium ("sodium") + New Latin -emia.


  • This imbalance of water to sodium is called hyponatremia.

    Long May You Run

  • Most recently, Michaels was found to have a side-effect called hyponatremia, which is a lack of sodium in the body that leads to seizures. Latest News

  • Although, when you're sweating a lot, it's really important to replace sodium as well as fluids to prevent a potentially serious condition called hyponatremia.

    The Dehydration Myth

  • For example, if a marathon runner or endurance athlete drinks very large amounts of water quickly and experiences an under-replacement of sodium, he or she is at higher risk of water intoxication and a life-threatening condition called hyponatremia.

    The Doctor is In

  • Five years ago, when she suffered from a sodium and electrolyte deficiency called hyponatremia, she recruited a family member -- another popular Net-coping strategy among the elderly -- to research the condition online for her.


  • Their balance of electrolytes like potassium and sodium gets diluted, and in severe cases the animals' sodium levels drop so low that they die from a condition called hyponatremia.

    Yahoo! News: Business - Opinion

  • The condition, called hyponatremia, stems from a lack of sodium.

    KDKA - Pittsburgh's Source for Breaking News, Weather and Sports

  • The condition, called hyponatremia, is a side effect of the brain hemorrhage that has left Michaels in intensive care at a hospital that hasn't been identified.

    KWTX - HomePage - Headlines

  • Besides bleeding at the stem of his brain, he had a side effect called hyponatremia -- a lack of sodium in the body.

    Lead Stories from AOL

  • Bret Michaels has undergone a setback in his recovery - a side effect from the brain hemorrhage he suffered called hyponatremia, a lack of sodium in the body which leads to seizures.

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  • People get it when they drink too much water. Ironically, it is also associated with dehydration.

    July 1, 2007