periodicity (n.)

• alternation
• array
• articulation
• bank
• beat
• buzz
• catena
• catenation
• chain
• concatenation
• connection
• continuum
• course
• cycle
• descent
• drone
• file
• filiation
• fluctuation
• frequency
• gamut
• gradation
• hum
• intermittence
• intermittency
• libration
• line
• lineage
• meter
• monotone
• nexus
• nutation
• oscillation
• pendulum
• period
• plenum
• progression
• pulsation
• queue
• range
• rank
• reappearance
• recurrence
• resonance
• reticulation
• return
• rhythm
• rotation
• round
• routine
• row
• run
• scale
• season
• seasonableness
• sequence
• series
• spectrum
• string
• succession
• swath
• thread
• tier
• train
• undulation
• vacillation
• vibrancy
• vibration
• wavering