- A sensation of spinning or whirling motion. Vertigo implies a definite sensation of rotation of the subject (subjective vertigo) or of objects about the subject (objective vertigo) in any plane.
- Imprecisely used as a general term to describe dizziness.
[L. vertigo (vertigin-), dizziness, fr. verto, to turn]
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Examples: glitazone, GI cocktail, etc.