periodic
adjective
pe·ri·od·ic
ˌpir-ē-ˈä-dik 
1
a
: occurring or recurring at regular intervals
b
: occurring repeatedly from time to time
2
a
: consisting of or containing a series of repeated stages, processes, or digits : cyclic
periodic decimals
a periodic vibration
b
: being a function any value of which recurs at regular intervals
3
: expressed in or characterized by periodic sentences
Examples of periodic in a Sentence
He takes the car in for periodic oil changes.
sent out periodic reminders about the office dress code
Recent Examples on the Web
By contrast, an investment product with private asset exposure designed for workplace retirement plans may have somewhat lower costs and let investors put money in regularly as well as make periodic withdrawals during the year.
—
Jeanne Sahadi, CNN Money, 12 Sep. 2025
The state is a non-equilibrium quantum state of matter in a system driven by a time-periodic Hamiltonian, which is a physical system whose governing rules change over time, but with a repeating, predictable cycle.
—Georgina Jedikovska, Interesting Engineering, 11 Sep. 2025
Interval funds provide an opportunity to invest in certain areas of private markets and credit while providing limited or periodic access to liquidity.
—Jenni Reid,ganesh Rao, CNBC, 10 Sep. 2025
Conduct periodic surveys to understand which tools employees are using, especially in marketing, product and sales.
—Nidhi Jain, Forbes.com, 10 Sep. 2025
See All Example Sentences for periodic
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Jeanne Sahadi, CNN Money, 12 Sep. 2025
The state is a non-equilibrium quantum state of matter in a system driven by a time-periodic Hamiltonian, which is a physical system whose governing rules change over time, but with a repeating, predictable cycle.
—Georgina Jedikovska, Interesting Engineering, 11 Sep. 2025
Interval funds provide an opportunity to invest in certain areas of private markets and credit while providing limited or periodic access to liquidity.
—Jenni Reid,ganesh Rao, CNBC, 10 Sep. 2025
Conduct periodic surveys to understand which tools employees are using, especially in marketing, product and sales.
—Nidhi Jain, Forbes.com, 10 Sep. 2025
See All Example Sentences for periodic
Cite this Entry
“Periodic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/periodic. Accessed 16 Sep. 2025.
Copy CitationKids Definition
periodic
adjective
pe·ri·od·ic
ˌpir-ē-ˈäd-ik
1
: occurring at regular intervals
2
: consisting of or containing a series of repeated stages
periodic vibrations
Medical Definition
periodic
adjective
pe·ri·od·ic
ˌpir-ē-ˈäd-ik
: occurring or recurring at regular intervals
periodic epidemics
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