What does periodically mean?
Periodically is an adverb meaning that something happens at regular intervals or from time to time. It is commonly used for scheduled activities, recurring checks, and routine maintenance, as in 'The equipment is inspected periodically.' In less precise contexts, periodically can simply mean occasionally, so it does not always imply an exact timetable. The word is useful when describing something that repeats without occurring continuously: a periodic report, periodic updates, or periodic payments. It sounds more formal and deliberate than words such as sometimes, while being less absolute than regularly and less continuous than constantly. The related adjective periodic emphasizes the recurring nature of something, and periodical can describe something that appears at intervals or is published regularly.
adverbAt regular intervals; from time to time, especially at fixed or predictable periods. It can also mean occasionally, depending on context.
- At regular or predictable intervals.
- Occasionally, when regular intervals are not specified.
- In a recurring or cyclical manner.
"The newsletter is published periodically throughout the year."
"The system checks for updates periodically, even when no user is active."
"We met periodically to review the progress of the project."
Periodically turns the passage of time into a pattern: what happens once a day, year, or decade can happen again and again.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does periodically come from?
Periodically was formed in the 19th century from period plus the adverbial suffix -ically. Period comes through Latin periodus from Greek periodos, a term associated with a path, a circuit, and therefore a recurring interval or cycle. The related English forms periodic and periodical developed from the same Latin and Greek roots and express the idea of recurring at regular intervals.
Related word forms
How periodically is actually used
In ordinary use, periodically often means 'from time to time' rather than with strict mathematical regularity. It is common in formal and technical writing, including administrative, scientific, and editorial contexts.