Hermetic
adjective
Completely airtight
“The vault seals are hermetic; not even dust passes them.”
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What does hermetic mean?
Commonly confused with
- NotLoosely fastened
- NotPurely decorative
- NotRecently broken
Nearby words
Hermetic is one of 1,969 SAT words in Professor Tas, a free story game where you learn them in context instead of from a list.
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