Hypertext Webster Gateway: "turbo"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Turbo \Tur"bo\, n. [L. turbo, -inis, a top. See {Turbine}.]
(Zo["o]l.)
Any one of numerous marine gastropods of the genus {Turbo} or
family {Turbinid[ae]}, usually having a turbinate shell,
pearly on the inside, and a calcareous operculum.
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