Definition Of periodic


appearing or occurring at intervals.

the periodic visits she made to her father

of or relating to a rhetorical period.

However, in the late 18th century there was a return to the periodic Latinate style.

relating to the periodic table of the elements or the pattern of chemical properties that underlies it.

The steadily increasing weights gave Mendeleyev, Meyer, and others a kind of index by which to order the elements and reveal their periodic behaviour.

Example Of periodic

  • A baby who has periodic breathing resumes regular breathing on his or her own.

  • Although it can be frightening, periodic breathing typically causes no other problems in newborns.

  • At periodic intervals, the iron bars at the mouth of narrow roads, put up to prevent the entry of heavy vehicles, are knocked down by lorries, due to reckless driving.

  • At this stage, the client needs periodic support as well as training in relapse prevention.

  • Bismuth is the fifth and last element in Group 15 of the periodic table.

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