The Hemi, made by DaimlerChrysler AG's Chrysler Group, is the nickname for a series of engines known for their dome-shape--or hemispherical--combustion chamber.

FORBES: Magazine Article

One day, they found an irregularly shaped stone, about the size of a tea tray, its upper surface pitted with small hemispherical holes.

NEWYORKER: The Sanctuary

The name derives from the hemispherical shape of the combustion chamber.

FORBES: The Engine That Could

Apply the "Fisheye Lens" to get a wide-angle hemispherical view of the photographic subjects, adding a new source of fun and intriguing creative possibilities to photos.

ENGADGET: BenQ's 14 megapixel S1420 camera touts mega O.I.S., 720p movie mode