Usage:Your duty will be to maintain the traffic system at peak periods.
commanded the officer.
Usage:ganoid fishes swarmed during the earlier geological periods
उदाहरण:She consulted the doctor for period pains.
A periodic review of expenditure is necessary to save money.
Usage:the periodic appearance of the seventeen-year locust
Usage:For a good health, we should go to check up our body by doctor periodically.
Usage:The chemical elements were arranged according to their atomic weight in the periodic table by Mendeleef (scientist).