periodic C2+ Topic:Describing Qualities US /ˌpɪriˈɑdɪk/ UK /ˌpɪəriˈɒdɪk/ See IPA manual Meanings 1 adj occurring or recurring at regular intervals The machine requires periodic maintenance every six months. Thesaurus Synonyms 1 adj · occurring or recurring at... recurrentcyclicintermittentregularrecurringsporadic ↔ Opposites constantcontinuousaperiodic Word family Derived forms periodicallyperiodicity Related forms periodperiodical Etymology AI details From Latin periodicus, from Greek periodikos, from periodos ('a cycle, circuit'), from peri- ('around') + hodos ('way, road'). periodos Ancient Greek peri Ancient Greek hodos Ancient Greek View etymology graph -> Topics Describing Qualities Word Formation & Derivatives External links Cambridge Dictionary Wiktionary Google Images # periodic **Type:** Word **Level:** C2+ **Part of speech:** adj **IPA (US):** /ˌpɪriˈɑdɪk/ **IPA (UK):** /ˌpɪəriˈɒdɪk/ ## Meanings 1. occurring or recurring at regular intervals ## Examples - The machine requires periodic maintenance every six months. ## Synonyms - recurrent - cyclic - intermittent - regular - recurring - sporadic ## Antonyms - constant - continuous - aperiodic ## Derived Forms - periodically - periodicity ## Related Forms - period - periodical ## Roots and Affixes - Root: periodos - Root: peri - Root: hodos ## Etymology From Latin periodicus, from Greek periodikos, from periodos ('a cycle, circuit'), from peri- ('around') + hodos ('way, road'). ## AI Etymology Periodic is from Latin periodicus, from Greek periodikos, from periodos ('a cycle, circuit'), from peri- ('around') + hodos ('way, road'). Important recorded forms include periodos (Ancient Greek), peri (Ancient Greek), and hodos (Ancient Greek). Morphologically, the word preserves a built structure whose named elements carry the historical sense into English. The modern sense remains close to that composition, with the parts narrowing into a single lexical item. In current use it covers occurring or recurring at regular intervals. The wider family includes derived forms such as periodically and periodicity and related words such as period and periodical. ## Topics - Describing Qualities - Word Formation & Derivatives markdown