hermetic
Pronunciation
Adjective
C1 Advanced
Quick answer
Completely sealed so that air or gas cannot get in or out, or completely isolated from outside influence.
Synonyms and antonyms
Synonyms
airtight
sealed
Test yourself
Which word fits the gap? "The lab samples were stored in _____ containers to prevent contamination."
Answer: hermetic
In your own words, what does "hermetic" mean?
Completely sealed so that air or gas cannot get in or out, or completely isolated from outside influence.
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