noun: Anything with a cyclic (repetitious) behaviour. Something that cycles between different states.
noun: (astronomy) An orbit that approaches two astronomical bodies on a regular basis.
noun: (astronautics, by extension) A, usually man-made, object that follows such an orbit.
noun: (psychology, euphemistic) A person with bipolar disorder, often used when comparing the speed of mood swings.
noun: (medicine) A device for performing dialysis; for mechanically purifying blood.
noun: (computing) A task in a cycle of tasks where the status of being active task is passed around the loop.
noun: (dated) cyclist
noun: (biochemistry) Ellipsis of thermal cycler.; a machine for creating multiple copies of DNA sequences. [(genetics) A laboratory device in which a polymerase chain reaction is carried out repeatedly in cycles which in turn amplifies the sample DNA segments. The instrument contains a thermal block which contains the DNA samples and can precisely control the internal temperature.]
