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| pe·ri·od·ic [ pree óddik ] |
adjective |
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1. occasional: recurring or reappearing from time to time
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2. regular: occurring or appearing at regular intervals or in regular cycles
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3. involving periods: associated with or occurring in periods
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| [Mid-17th century. Via French and Latin< Greek periodikos< periodos (see period)] |
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 pe·ri·od·i·cal·ly adverb |
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| Word Key: Synonyms |
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periodic, intermittent, occasional, sporadic
CORE MEANING: recurring over a period of time
periodic recurring or reappearing from time to time;
carry out periodic inspections
El Niño, a periodic weather pattern
intermittent occurring at irregular intervals;
The pain was usually intermittent, although in some patients it was continuous.
Thunder, lightning, and intermittent rain delayed the start of the tournament.
occasional occurring infrequently at irregular intervals;
Her family kept in contact by writing, telephoning, and occasional visits.
He sat silent, producing only an occasional suppressed grunt.
sporadic occurring at intervals that have no apparent pattern;
Despite a truce announced last month, sporadic fighting continues.
Prior to the mid-1960s, pollution issues received only limited and sporadic attention from the general public. |
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