Definition

Adverb 1. In an airtight manner; in a way that is completely sealed against the entry or escape of air or other substances. - This describes a seal that is so tight and secure that it prevents any passage of gases or liquids, often to preserve contents or create a vacuum.

Usage

The adverb "hermetically" is almost exclusively used to modify the past participle "sealed." It describes the method or result of a sealing process. - It is used in technical, scientific, and industrial contexts. - It emphasizes a seal of the highest quality, implying impermeability.

Examples

• General Usage:
  • The sensitive electronic components are stored in a hermetically sealed container to protect them from moisture.
  • For long-term storage, food is often packaged in hermetically sealed cans or jars.
  • The laboratory samples must be kept hermetically sealed to prevent contamination.

Advanced Usage

• "hermetically sealed": This is the standard and primary collocation. It functions as a compound adjective.
  • The spacecraft's cabin is a hermetically sealed environment to sustain life in space.
• The concept can be extended metaphorically to describe something isolated or closed off from external influences.
  • The ancient sect lived a hermetically isolated existence, cut off from the modern world. (Note: This is a figurative extension; the core meaning remains physical sealing.)

Variants and Related Words

• Hermetic (adjective):
  • Airtight: a hermetic seal.
  • Relating to occult or alchemical traditions: hermetic philosophy.
  • Insulated or isolated from external influences: a hermetic society.
• Hermeticism (noun): A philosophical and esoteric tradition based on writings attributed to Hermes Trismegistus.

Synonyms

• Airtightly (less common)
• Impermeably
• Tightly sealed

Antonyms

• Loosely
• Permeably
• Leakily

Notes

• The term originates from Hermes Trismegistus, a legendary figure associated with alchemy and magic, as such secrets were thought to be tightly "sealed" or hidden.
• In modern usage, it has lost its mystical connotations in technical contexts and strictly refers to a perfect physical seal.

Adverb

1. in an airtight manner
   • this bag is hermetically sealed