oscillator

noun

1. A tuned electronic circuit used to generate a continuous output waveform.
2. An instrument for measuring rigidity by the torsional oscillations of a weighted wire.
3. A pattern that returns to its original state, in the same orientation and position, after a finite number of generations.

   “He has turned up a number of new oscillators of periods 2,3,4,5,6, & 8.”

   “Two track segments, each of which realizes the same transformation in a different number of generations are particularly useful for obtaining oscillator periods.”

   “Synthesis of spaceship flotillas is even more complicated than synthesis of oscillators, since spaceships are like oscillators that move[…]”