1. turbocharger.
2. turbojet.
3. turban shell

1. any one of numerous marine gastropods of the genus turbo or family Turbinidæ, usually having a turbinate shell, pearly on the inside, and a calcareous operculum.

1. A prefix (turbo-), used in composition to designate a machine in which the motive energy is derived from a steam turbine either directly connected, or on the same revolving shaft as the element designated by the other word of the compound: as, a turbo-alternater, an alternating-current dynamo the armature of which is the prolongation of the axis of the steam turbine; a turbo-generator, a dynamo either for direct or alternating current, similarly directly driven. see cut at Curtis steam turbine.
2. as a substantive: A pump or ventilator in which the impeller revolves as a turbine, or as a top, and drives the fluid which it is to displace by a centrifugal or rotary action.
3. A direct-connected turbine-driven generator; an abbreviation of turbo-dynamo.
4. the typical genus of the family Turbinidæ, formerly very extensive, now restricted to species with a regularly turbinated shell, rounded aperture, smooth beveled columellar lip, and a calcareous operculum with a central or subcentral nucleus.
5. A shell of this genus.