Hypertext Webster Gateway: "hermetically"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Hermetically \Her*met"ic*al*ly\, adv.
1. In an hermetical manner; chemically. --Boyle.
2. By fusion, so as to form an air-tight closure.
Note: A vessel or tube is hermetically sealed when it is
closed completely against the passage of air or other
fluid by fusing the extremity; -- sometimes less
properly applied to any air-tight closure.
From WordNet (r) 1.7 (wn)
hermetically
adv : in an airtight manner; "this bag is hermetically sealed"
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