Vĕr'ti-go, n.

(Synop., § 130), n. [Lat., from vertere, to turn, It. vertigine, Sp. vertigo, Pg. vertigem, Pr. vertige, vertitge, Fr. vertige.]

1. Dizziness or swimming of the head; an affection of the head, in which objects appear to move in various directions, though stationary, and the person affected finds it difficult to maintain an erect posture; giddiness.
2. (Zoöl.) A genus of gasteropodous mollusca, with cylindrically fusiform shell. Eng. Cyc.