periodic

1
[ peer-ee-od-ik ]
/ ˌpɪər iˈɒd ɪk /

adjective

Origin of periodic

1
1635–45; < Latin periodicus < Greek periodikós. See period, -ic
Related formspe·ri·od·i·cal·ly, adverbqua·si-pe·ri·od·i·cal·ly, adverb
Can be confusedperiodic periodical
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for periodically

British Dictionary definitions for periodically

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 Formsperiodically, 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

Word Origin and History for periodically

periodic


adj.

1640s, from French périodique (14c.), from Latin periodicus, from periodus (see period).

Periodic table in chemistry (1889) is from notion of the arrangement, in which similar properties recur at intervals in elements in the same area as you read down the rows of the table. This sense of the word is attested from 1872 (periodic law).

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for periodically

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.