MICROANATOMY

Detailed explanation-1: -a combining form meaning “heat, ‘’ “hot, ‘’ used in the formation of compound words: thermoplastic.

Detailed explanation-2: -A prefix that means “heat, ‘’ as in thermometer.

Detailed explanation-3: -A thermos is a bottle with a double-walled container inside of it. The air between the two walls is sucked out during construction, creating a vacuum. Instead of containing some kind of heating element to keep hot things hot, a thermos is designed to keep hot things hot by not allowing heat to escape.