Definition of Dizziness

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Dizziness: Painless head discomfort with many possible causes including disturbances of vision, the brain, balance (vestibular) system of the inner ear, and gastrointestinal system. Dizziness is a medically indistinct term which laypersons use to describe a variety of conditions ranging from lightheadedness, unsteadiness to vertigo.

See: Lightheadedness, Unsteadiness, and Vertigo. Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=6114
Last Editorial Review: 4/27/2011 5:27:15 PM