Category Nuances matching cycle:

• basic,
• operational,
• functional,
• natural,
• common,
• astronomical,
• elemental,
• biochemical,
• musical,
• cosmic,
• unusual,
• temporal,
• regular,
• physical,
• biological,
• new,
• seasonal,
• periodic,
• solar,
• menstrual,
• planetary,
• interactive,

Members for simple category cycle:

• circadian_rhythm,
• sunset,
• flood,
• water_cycle,
• rock_cycle,
• period,
• budget_cycle,
• song_cycle,
• war_cycle,
• heartbeat,
• weather_cycle,
• current,
• tide,
• course,
• cardiac_cycle,
• solar_cycle,
• wildlife_migration,
• operation_cycle,
• sulfur_cycle,
• ionic_oscillation,
• animal_migration,
• combined_cycle,
• sun_cycle,
• menstrual_period,
• menstruation_cycle,
• lunar_cycle,
• oxygen_cycle,
• mars_cycle,
• diurnal_cycle,
• migration,
• pulsation,
• christmas_period,
• sunrise,
• duvet_cycle,
• bird_migration,
• venus_cycle,
• tandem,
• heavy_period,
• biological_cycle,
• moon_cycle,
• carbon-dioxide_cycle,