Definition of "periodic" in English

adjective

1. Relative to a period or periods.

2. Having repeated cycles.

3. Occurring at regular intervals.

4. Periodical.

5. (astronomy) Pertaining to the revolution of a celestial object in its orbit.

6. (mathematics, stochastic processes, of a state) For which any return to it must occur in multiples of k time steps, for some k>1.

7. (rhetoric) Having a structure characterized by periodic sentences.

adjective

1. Relating to the highest oxidation state of iodine; of or derived from a periodic acid.