cyclic vs nocturnal

cyclic

adj
  • Firing at its full cyclic rate. 

  • Having chains of atoms arranged in a ring. 

  • Characterized by, or moving in cycles, or happening at regular intervals. 

  • Having parts arranged in a whorl. 

  • Being generated by only one element. 

  • Able to be inscribed in a circle. 

noun
  • The flight control used to control a helicopter's direction and rate of horizontal movement by tilting the lift vector of the helicopter's main rotor disk. 

nocturnal

noun
  • A device for telling the time at night, rather like a sundial but read according to the stars. 

  • A person or creature that is active at night. 

adj
  • Taking place at night, nightly. 

  • Primarily active during the night. 

How often have the words cyclic and nocturnal occurred in a corpus of books? (source: Google Ngram Viewer )