D defs.my
Entry 2 senses Webster, 1913

Hermetically

· Her·met·ic·al·ly · IPA /hɚˈmɛt.ɪk(.ə)li/
01 adv. In an hermetical manner; chemically.
  1. 1.
    In an hermetical manner; chemically.
  2. 2.
    By fusion, so as to form an air-tight closure.