VERTIGO

vertigo. Vertigo, n. a giddiness, a quick whirling motion

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Ver″ti‐go (?; 277), n.; pl. E. Vertigoes (#), L. Vertigines (#). [[L., fr. vertere to turn. See Verse.]] 1. 1. (Med.) Dizziness or swimming of the head; an affection of the head in which objects, though stationary, appear to move in various directions, and the person affected finds it difficult to maintain an erect posture; giddiness. Quain.
2. 2. (Zoöl.) Any one of numerous species of small land snails belonging to the genus Vertigo, having an elongated or conical spiral shell and usually teeth in the aperture.