A series of events that are regularly repeated in the same order
a myth embodying the cycle of birth, death, and rebirth
A man who rides a bicycle, especially as a sport; specifically Military †a cavalryman mounted on a bicycle rather than a horse (obsolete).
Relating to the middle of a cycle of operations or activity.
Another term for two-stroke.
The sequence of events by which a eukaryotic cell replicates itself and divides in two.
A period of a clock signal.
A clip used to attach something to a bicycle (now rare).
A scout mounted on a motorcycle or (in early use) a bicycle.
A type of low small-wheeled bicycle for children.
A system of natural relationships by which organisms in a community depend on each other for food.
A closed path in phase space representing a limit; especially one that is an attractor.
A round of media coverage; the period from one broadcast or printing to the next.
A cycle of operations in which a working fluid, coolant, etc., is used only once.
The stage in the operation of a washing machine or dishwasher in which items are rinsed in clean water to remove any remaining detergent.
A stage in the operation of a washing machine in which laundry is partially spin-dried.
A washing process carried out in a machine, industrial plant, etc.; specifically a stage in the operation of a washing machine or dishwasher during which items are cleaned using water and detergent.
A division of a road marked off with painted lines, for use by cyclists
A path or road for bicycles and not motor vehicles
Denoting a type of electric battery that can be totally discharged and recharged several times
The cycle of operation of a machine or other device which operates intermittently rather than continuously
The sequence of reactions by which most living cells generate energy during the process of aerobic respiration. It takes place in the mitochondria, using up oxygen and producing carbon dioxide and water as waste products, and ADP is converted to energy-rich ATP
The series of changes in the life of an organism including reproduction
Another term for Metonic cycle.
An idealized cycle of processes undergone by rocks in the earth’s crust, involving igneous intrusion, uplift, erosion, transportation, deposition as sedimentary rock, metamorphism, and further melting and igneous intrusion
A set of related songs, often on a romantic theme, intended to form a single musical entity
Another term for business cycle.
The cycle of processes by which water circulates between the earth’s oceans, atmosphere, and land, involving precipitation as rain and snow, drainage in streams and rivers, and return to the atmosphere by evaporation and transpiration
A battery used to power a bicycle light.
A light safety helmet for cyclists.
= cycling shorts.
(The time taken by) the process of replacing one unit of data in a memory by another.
= pentose phosphate pathway.
A series of pictures forming a narrative, especially (in medieval art) a biblical or hagiographic narrative presented in illuminated manuscripts, stained-glass windows, etc.
A thermodynamic cycle which describes the operation of an ideal composite engine worked by steam or other condensable vapour.
A four-wheeled pedal cycle seating two or three people side by side.
The series of processes by which carbon compounds are interconverted in the environment, involving the incorporation of carbon dioxide into living tissue by photosynthesis and its return to the atmosphere through respiration, the decay of dead organisms, and the burning of fossil fuels
The recurring reproductive cycle in many female mammals, including estrus, ovulation, and changes in the uterine lining
A period of 19 years (235 lunar months), after which the new and full moons return to the same day of the year. It was the basis of the ancient Greek calendar, and is still used for calculating movable feasts such as Easter
The recurring increase and decrease in the number of sunspots over a period averaging about eleven years
= bicycle ergometer.
= exercise bicycle.
The phase of a woman's life from menarche to menopause, considered as a series of periods of ovarian, uterine, and mammary activity.
The transfer of elements essential for the nutrition of living organisms, from the organisms, to their physical surroundings, and back again, in a continuous cycle.
The reproductive cycle typical of most female mammals, in which there are regularly recurring periods of sexual receptivity and fertility separated by periods of sexual inactivity.
A single circuit of a simple closed curve in the phase space of a system, representing one possible solution of the governing differential equations.
= virtuous circle.
A cycle or series of cycles of economic expansion and contraction