Airtight adjective – Not allowing air or gas to pass in or out. Hermetically sealed and airtight are semantically related in sealed topic. In some cases you can use "Hermetically sealed" instead an adjective "Airtight".
Defintions of Hermetically sealed not found. Airtight and hermetically sealed are semantically related in sealed topic. You can use "Airtight" instead an adjective phrase "Hermetically sealed".