petrol engine

from WordNet (r) 3.0 (2006)

petrol engine
    n 1: an internal-combustion engine that burns gasoline; most
         automobiles are driven by gasoline engines [syn: {gasoline
         engine}, {petrol engine}]

from The Collaborative International Dictionary of English v.0.48

Gasoline engine \Gas"o*line en"gine\, or Gasolene engine
\Gas"o*lene en"gine\ . (Mach.)
   A kind of internal-combustion engine; -- in British countries
   called usually {petrol engine}.
   [Webster 1913 Suppl.]