hermetic

The definition of hermetic is something completely sealed or airtight.

(adjective)

A container that has been fused shut is an example of a hermetic container.

See hermetic in Webster's New World College Dictionary

adjective

of or derived from Hermes Trismegistus and his lore
1. magical; alchemic
2. hard to understand; obscure
Origin: from use in alchemy
completely sealed by fusion, soldering, etc. so as to keep air or gas from getting in or out; airtight
also hermetical

Origin: ModL hermeticus < L Hermes < Gr Hermēs (trismegistos)

Related Forms:

See hermetic in American Heritage Dictionary 4

adjective

Completely sealed, especially against the escape or entry of air.
Impervious to outside interference or influence: the hermetic confines of an isolated life.
often Hermetic
a. Mythology Of or relating to Hermes Trismegistus or the works ascribed to him.
b. Having to do with the occult sciences, especially alchemy; magical.

Origin:

Origin: New Latin hermēticus, alchemical

Origin: , from Medieval Latin Hermēs (Trismegistus); see Hermes Trismegistus

Related Forms: