periodic

adjective

pe·​ri·​od·​ic ˌpir-ē-ˈä-dik How to pronounce periodic (audio)
Synonyms of periodicnext
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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Torpor pauses damage, and the periodic arousals help the squirrel’s body fix what little damage has accumulated. Scott Travers, Forbes.com, 24 Jan. 2026 Opponents said McLean’s plan would cut down 17 acres of trees and add 7 acres of impervious surfaces, worsening the periodic flooding that’s already a concern. Don Stacom, Hartford Courant, 23 Jan. 2026 Their goal is to replace periodic checks with continuous monitoring. Aamir Khollam, Interesting Engineering, 22 Jan. 2026 The fund is structured so that capital returned from each investment is automatically reinvested into future projects, allowing investors potential to compound returns over time, while also offering periodic opportunities to cash out. Dade Hayes, Deadline, 21 Jan. 2026 See All Example Sentences for periodic

Word History

First Known Use

1650, in the meaning defined at sense 1a

Time Traveler
The first known use of periodic was in 1650

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Cite this Entry

“Periodic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/periodic. Accessed 28 Jan. 2026.

Kids Definition

periodic

adjective
pe·​ri·​od·​ic ˌpir-ē-ˈäd-ik How to pronounce periodic (audio)
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 How to pronounce periodic (audio)
: occurring or recurring at regular intervals
periodic epidemics

More from Merriam-Webster on periodic

Last Updated: - Updated example sentences
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