• rhermos flask [tm],
• fhermos flask [tm],
• ghermos flask [tm],
• yhermos flask [tm],
• 6hermos flask [tm],
• 5hermos flask [tm],
• tgermos flask [tm],
• tbermos flask [tm],
• tnermos flask [tm],
• tjermos flask [tm],
• tuermos flask [tm],
• tyermos flask [tm],
• thwrmos flask [tm],
• thsrmos flask [tm],
• thdrmos flask [tm],
• thrrmos flask [tm],
• th4rmos flask [tm],
• th3rmos flask [tm],
• theemos flask [tm],
• thedmos flask [tm]

The adjective form of the term "thermos flask [tm]" is "thermos flask". It functions as both a noun and an adjective, describing the type of flask that is insulated and capable of keeping liquids hot or cold for extended periods.