Pronunciation: (hûr-met'ik), [key]
1. made airtight by fusion or sealing.
2. not affected by outward influence or power; isolated.
3. (sometimes cap.) of, pertaining to, or characteristic of occult science, esp. alchemy.
4. (cap.) of or pertaining to Hermes Trismegistus or the writings ascribed to him. Also,her•met'i•cal.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.