a. | 1. | Of, pertaining to, or taught by, Hermes Trismegistus; The alchemists, as the people were called who tried to make gold, considered themselves followers of Hermes, and often called themselves Hermetic philosophers. | |||||||||
2. | Of or pertaining to the system which explains the causes of diseases and the operations of medicine on the principles of the hermetic philosophy, and which made much use, as a remedy, of an alkali and an acid; | ||||||||||
3. | Made perfectly close or air-tight by fusion, so that no gas or spirit can enter or escape;
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Adj. | 1. | hermetic - completely sealed; completely airtight |