- noting or pertaining to an internal-combustion engine in which two strokes are required to complete a cycle (two-stroke cycle), one to admit and compress air or an air-fuel mixture and one to ignite fuel, do work, and scavenge the cylinder.
Origin of two-cycle
First recorded in 1900–05
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for two-cycle
When a single-cylinder engine is used, it should be of the two-cycle type.Electricity for the farm
Frederick Irving Anderson
In 1880 he began to commercialize a two-cycle stationary engine.Automobile Biographies
Lyman Horace Weeks
In a two-cycle engine there is one working stroke in two traverses.Inventors at Work
Thus it is plain that the motor is of the four-cycle type and it should not be confounded with two-cycle motors.
There are many different makes of two-cycle motors, of course, and all have their various merits.
- US and Canadian relating to or designating an internal-combustion engine whose piston makes two strokes for every explosionAlso called (in Britain and certain other countries): two-stroke See four-stroke