adjective
- happening at regular intervals of time
- occurring from time to time; occasional
- relating to the periodic table of chemical elements
Usage: chemistry
Examples
- The company conducts periodic reviews of employee performance.
- She experiences periodic headaches during stressful times.
- The periodic table organizes elements by their atomic number.
- Periodic maintenance is required to keep the machine running smoothly.
- The patient showed periodic improvement over several months.
- Scientists study the periodic motion of planets around the sun.
- The periodic properties of elements repeat in predictable patterns.