periodic

1
[ peer-ee-od-ik ]
/ ˌpɪər iˈɒd ɪk /

adjective

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Origin of periodic

1
1635–45; < Latin periodicus < Greek periodikós. See period, -ic

OTHER WORDS FROM periodic

pe·ri·od·i·cal·ly, adverbqua·si-pe·ri·od·i·cal·ly, adverb

WORDS THAT MAY BE CONFUSED WITH periodic

periodic periodical

Definition for periodic (2 of 2)

periodic2
[ pur-ahy-od-ik ]
/ ˌpɜr aɪˈɒd ɪk /

adjective Chemistry.

of or derived from a periodic acid.

Origin of periodic

2
First recorded in 1830–40; per- + iodic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for periodic

British Dictionary definitions for periodic

periodic
/ (ˌpɪərɪˈɒdɪk) /

adjective

happening or recurring at intervals; intermittent
of, relating to, or resembling a period
having or occurring in repeated periods or cycles

Derived forms of periodic

periodically, adverbperiodicity (ˌpɪərɪəˈdɪsɪtɪ), noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for periodic

periodic
[ pîr′ē-ŏdĭk ]

adj.

Having or marked by repeated cycles.
Recurring at regular intervals.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.