'Radial engine' definitions:

Definition of 'radial engine'

From: WordNet
noun
An internal-combustion engine having cylinders arranged radially around a central crankcase [syn: radial engine, rotary engine]

Definition of 'Radial engine'

From: GCIDE
  • Radial engine \Radial engine\ (Mach.) An engine, usually an internal-combustion engine of a certain type (the
  • radial type) having several cylinders arranged radially like the spokes of a complete wheel. The
  • semiradial engine has radiating cylinders on only one side of the crank shaft. [Webster 1913 Suppl.]