Periodic event in business, menstruation, Der Ring Des Nibelungen

noun

1. An interval of time during which a sequence of a recurring succession of events or phenomena is completed

   "a 4-year cycle of growth and development"

2. A course or series of events or operations that recur regularly and usually lead back to the starting point

   "… the common cycle of birth, growth, senescence, and death."

3. One complete performance of a vibration, electric oscillation, current alternation, or other periodic process
4. A permutation of a set of ordered elements in which each element takes the place of the next and the last becomes first
5. A takeoff and landing of an airplane
6. An imaginary circle or orbit in the heavens
7. Ring
8. A long period of time age
9. A group of creative works (such as poems, plays, or songs) treating the same theme

   "a cycle of poems about unrequited love"

10. A series of narratives dealing typically with the exploits of a legendary hero

    "the Arthurian cycle"

11. Bicycle
12. Tricycle
13. Motorcycle
14. The series of a single, double, triple, and home run hit in any order by one player during one baseball game

verb

1. To pass through a cycle

   "The menu cycles through all the options."

2. To recur in cycles

   "Freezing temperatures … aren't the problem. It's when temperatures cycle between freezing and thaws, causing pavement to contract and expand … that can create larger issues."

3. To ride a cycle
4. To cause to go through a cycle

   "The fact that it [the pump] runs constantly may be a bad sign. It may be cycling the water, not removing it."

noun

1. A circular band for holding, connecting, hanging, pulling, packing, or sealing

   "a key ring"

2. A circlet usually of precious metal worn especially on the finger
3. A circular line, figure, or object

   "smoke ring"

4. An encircling arrangement

   "a ring of suburbs"

5. A circular or spiral course
6. A usually square enclosure in which a fighting contest (such as a boxing or wrestling match) takes place
7. A band of small objects revolving around a planet (such as Saturn) and composed of dust and icy or rocky fragments
8. Annual ring
9. An exclusive combination of persons for a selfish and often corrupt purpose (as to control a market)

   "a wheat ring"

10. Gang
11. The field of a political contest race
12. Food in the shape of a circle
13. An arrangement of atoms represented in formulas or models in a cyclic manner
14. A set of mathematical elements that is closed under two binary operations of which the first forms a commutative group with the set and the second is associative over the set and is distributive with respect to the first operation
15. A pair of usually rubber-covered metal rings suspended from a ceiling or crossbar to a height of approximately eight feet above the floor and used for hanging, swinging, and balancing feats in gymnastics
16. An event in gymnastics competition in which the rings are used
17. Boxing

    "ended his ring career"

noun

1. A set of bells
2. A clear resonant sound made by or resembling that made by vibrating metal
3. Resonant tone sonority
4. A loud sound continued, repeated, or reverberated
5. A sound or character expressive of some particular quality

   "the story had a familiar ring"

6. The act or an instance of ringing
7. A telephone call

noun

1. A cycle of economic activity usually consisting of recession, recovery, growth, and decline

noun

1. The cycle of enzyme-catalyzed dark reactions of photosynthesis that occurs in the chloroplasts of plants and in many bacteria and that involves the fixation of carbon dioxide and the formation of a 6-carbon sugar

noun

1. The cycle of carbon in the earth's ecosystems in which carbon dioxide is fixed by photosynthetic organisms to form organic nutrients and is ultimately restored to the inorganic state (as by respiration, protoplasmic decay, or combustion)
2. A cycle of thermonuclear reactions in which four hydrogen atoms synthesize into a helium atom by the catalytic action of carbon with the release of nuclear energy and which is held to be the source of most of the energy radiated by the sun and stars

noun

1. The complete series of events from one cell division to the next compare g₁ phase, g₂ phase, m phase, s phase

noun

1. Krebs cycle

noun

1. Estrous cycle