Definitions for "Hemispherical"
A term used to describe any engine that has hemispherical combustion chambers in its cylinder heads. Hemi engines (most notably the 426ci Dodge V8) offer extremely good breathing characteristics and usually generate lots of power.
Keywords:  half, round
Half-round.
Containing, or pertaining to, a hemisphere; as, a hemispheric figure or form; a hemispherical body.
Keywords:  relating
of or relating to or being a hemisphere