Noun
(automotive) A motor with hemispherical combustion chambers. A piston engine internal combustion engine with hemispherical piston cylinder heads.
(automotive) A combustion chamber with the hemispherical cylinder head from such an engine.
(automotive) A hemispherical cylinder head from such a motor.
(automotive) A vehicle equipped with such a motor engine.
(by extension) Domed versions of the above that have cylinder heads that are not exactly hemispherical
Source: en.wiktionary.orgEd Donovan introduces the 417 Donovan hemi, an aluminum copy of the Chrysler Street Rodder, 7/94, p.144. Source: Internet
The pinnacle of this effort was the introduction of the Challenger sports coupe and convertible (Dodge's entry into the "pony car" class ) in 1970, which offered everything from mild economy engines up to the wild race-ready Hemi V8 in the same package. Source: Internet
In hemi isotactic macromolecules every other repeat unit has a random substituent. Source: Internet
Even after returning to NASCAR once the Hemi was reinstated, Richard continued drag racing the 43 JR until early 1966. Source: Internet
A cat named Hemi vanished without a trace in 2011 and reappeared mysteriously last week. Source: Internet
Pound-for-pound, the new HEMI Magnum generates the same muscle per-cubic-inch as its predecessor—and it does so with nearly double the fuel economy and only a fraction of the pollutants. Source: Internet