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Definition of Dizziness

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: dizziness, unsteadiness, and vertigo. Source: MedTerms™ Medical Dictionary
Last Editorial Review: 5/12/2014

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Medically reviewed by Martin Zipser, MD; Board Certified: Surgery

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