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pe·ri·od·ic

periodic

 
 
pronunciation:
pi ri a dihk
features:
Word Parts
part of speech: adjective
definition: happening or appearing at regular times.
We make periodic visits to the doctor to make sure we're healthy.The full moon is a periodic sight in the night sky.
synonyms:
regular
derivation: periodically (adv.)
Word Parts  About this feature
The word periodic contains the following parts:
peri Greek root that means around, surrounding
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-ic Latin and Greek adjective-forming suffix that means like, pertaining to
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The suffix -ic attaches to roots and words of Greek or Latin origin to form adjectives. A few words ending in -ic (magic , critic , music ) were adjectives that became nouns in Greek before they entered English, also as nouns.