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. Wages . . . bear a full proportion . . . to the medium of provision during the last bad cycle of twenty years. Burke.

A light vehicle having two wheels one behind the other. It has a saddle seat and is propelled by the rider's feet acting on cranks or levers.

One who rides a bicycle.

An ideal heat-engine cycle in which the working fluid goes through the following four successive operations: (1) Isothermal expansion to a desired point; (2) adiabatic expansion to a desired point; (3) isothermal compression to such a point that (4) adiabatic compression brings it back to its initial state.…

its proper center. The schoolmen were like astronomers which did feign eccentries, and epicycles, and such engines of orbs. Bacon.

A four-stroke cycle, as the Otto cycle, for an internal- combustion engine. -- Four"-cy`cle, a.

icircular arena, or room, or part of a room. The collections will be displayed in the hemicycle of the central pavilion. London Academy.

The cycle for the air engine proposed by Joule. In it air is taken by a pump from a cold chamber and compressed adiabatically until its pressure is eqal to that of the air in a hot chamber, into which it is then delivered, thereby displacing an equal amount of hot air into the engine cylinder. Here it expands adiabatic…

A bicycle having a motor attached so as to be self-propelled. In Great Britain the term motor cycle is treated by statute (3 Ed VII. c. 36) as limited to motor cars (self-propelled vehicles) designed to travel on not more than three wheels, and weighing unladen (that is, without water, fuel, or accumulators necessary f…

A four-stroke cycle for internal-combustion engines consisting of the following operations: First stroke, suction into cylinder of explosive charge, as of gas and air; second stroke, compression, ignition, and explosion of this charge; third stroke (the working stroke), expansion of the gases; fourth stroke, expulsion…

A bicycle with equal or nearly equal wheels, usually 28 inches diameter, driven by pedals connected to the rear (driving) wheel by a multiplying gear.

A three-wheeled velocipede. See Illust. under Velocipede. Cf. Bicycle.

A two-stroke cycle for an internal-combustion engine. --Two"- cy`cle, a.

Not cyclic; not disposed in cycles or whorls; as: (a) (Bot.)

A form of fruit in the cycle of development of the Rusts or Brands, an order of fungi, formerly considered independent plants.

omalistic revolution, the period in which a planet or satellite goes through the complete cycles of its changes of anomaly, or from any point in its elliptic orbit to the same again. -- Anomalistic, or Periodical year. See under Year.

Relating to bicycles.

The use of a bicycle; the act or practice of riding a bicycle.

The art of riding a bicycle.

A bicycler.