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cycle a circle of events that repeats in a regular pattern. [7 definitions]
cycle rickshaw a type of transportation originating in Asia, having three wheels and two passenger seats, and powered by a person pedaling; pedicab; bicycle rickshaw.
cyclic pertaining to, forming, or recurring in a cycle. [2 definitions]
cyclical pertaining to, forming, or recurring in a cycle. [3 definitions]
cycling the activity or competitive sport of riding or racing on a bicycle. [2 definitions]
cyclist one who rides a bicycle, motorcycle, or the like.
cyclizine an antihistamine used to combat nausea and motion sickness.
cyclo- cycle; circle; ring. [2 definitions]
cycloid circular. [3 definitions]
cyclometer an instrument used to measure segments of circles. [2 definitions]
cyclone a large system of winds that rotates around a center of low barometric pressure, moving counterclockwise in the Northern Hemisphere and clockwise in the Southern, and usu. producing destructive storms. (Cf. anticyclone.) [2 definitions]
cyclone fence a strong chain-link fence, usu. high and topped with barbed wire, used around military bases, prisons, and the like.
cyclonite an insoluble, crystalline, nitrogen compound used as an explosive or as rat poison.
Cyclopean of, concerning, or characteristic of the Cyclopes. [2 definitions]
cyclopedia an encyclopedia.
cyclophosphamide a chemotherapeutic drug that suppresses the immune system, used esp. in the treatment of lymphomas.
Cyclops in Greek mythology, any of several giants having only one eye, in the middle of the forehead. [2 definitions]
cyclorama a large composite picture put on the wall of a circular room to appear in a natural perspective to a person in the center of the room. [2 definitions]
cyclotron a device for accelerating charged particles to very high energies in a spiral path using a fixed magnetic field and an alternating electric field.
cygnet a young swan.
Cygnus a summer constellation in the northern sky that is shaped like a cross, located between Cepheus and Aquila and containing the bright star Deneb and a double star; Swan; Northern Cross.