Adverb
In an hermetical manner; chemically.
By fusion, so as to form an air-tight closure.
Source: Webster's dictionaryHe had been eight years upon a project for extracting sunbeams out of cucumbers, which were to be put in phials hermetically sealed, and let out to warm the air in raw inclement summers. Jonathan Swift
Oh, no single piece of our mental world is to be hermetically sealed off from the rest, and there is not a square inch in the whole domain of our human existence over which Christ, who is Sovereign over all, does not cry: ‘Mine! Abraham Kuyper
For the faithful, the patient, the hermetically pure, all the important things in this world - not life and death, perhaps, which are merely words, but the important things - work out rather beautifully. J. D. Salinger
Archeological discoveries at sites like Ugarit prevent us from regarding Greece as the hermetically sealed Olympian miracle, or Israel as the vacuum-packed miracle from Sinai. Cyrus H. Gordon
this bag is hermetically sealed Source: Internet
Ken Cuccinelli, the acting deputy secretary of Homeland Security, told lawmakers last week that passenger screening “bought us time” but said travel restrictions and screenings were never “intended to be a hermetically sealed process.” Source: Internet