Alternative form of upcycle (“period of a cycle where something is growing or increasing”).

(cytology) The life cycle of eukaryotic cells from a quiescent beginning, growth, duplication of DNA followed by mitosis and division.

(biochemistry) A metabolic cycle of biochemical reactions, occurring in ureotelic organisms, in which highly toxic ammonia is converted to urea for excretion.

(biochemistry) The urea cycle.

(biochemistry) The Krebs cycle.

(chemistry) The conversion of one enantiomer of a chemical compound into the other enantiomer and back again.

(sports, uncountable) A team sport, similar to traditional polo, except that bicycles are used instead of horses.

Metonic cycle

plural of cycle track

a dedicated track or path along which bicycles can be ridden