periodic
Pronunciation
Adjective
B1 Intermediate
Quick answer
Happening repeatedly at regular intervals of time.
Synonyms and antonyms
Usage notes
The "periodic table" in chemistry is named for the way elements' properties repeat in a regular pattern.
Test yourself
Which word fits the gap? "The machine needs _____ maintenance to keep running smoothly."
Answer: periodic
In your own words, what does "periodic" mean?
Happening repeatedly at regular intervals of time.
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