Hermetically

usgb/hɜːrˈmetɪkli/
adverb

In a way that is completely airtight.

The contents of the package were hermetically sealed to prevent contamination.
Visual representation of "hermetically" - In a way that is completely airtight.

Often appears as...

  • hermetically sealed
  • hermetically closed

Usage tips

Formal

Definition 1 of 2
Visual representation of "hermetically"
LampPro Tip 1/3

Literally Airtight

Use 'hermetically' to describe something sealed so well that no air can enter or escape.

Illustration for Literally Airtight
The laboratory samples were stored in hermetically sealed containers.
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Complete Isolation

'Hermetically' implies no outside elements can penetrate the barrier, like a perfect bubble.

Illustration for Complete Isolation
The rare documents were kept in a hermetically controlled environment.
LampPro Tip 3/3

Technical Contexts

Often used in scientific or technical contexts where precise conditions are essential.

Illustration for Technical Contexts
Food safety requires certain products to be hermetically packaged.
Visual representation of the word "Hermetically"

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