For example, if you want to see images of skin tags on the eyelids or armpits, the keywords âskin tag picturesâ make a vague expression and you may get dozens of sites before the one where the required skin tag pictures are presented.
Definition of thermos for English Language Learners. : a container that keeps liquids hot or cold for long periods of time.
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. Heat can be transferred through the air. To keep heat from escaping, you need insulation. The best insulator possible is a vacuum, because there's no air. If there's no air to transfer heat, then the heat is retained where it is â and where you want it: in your food. A thermos keeps cold things cold in the same way. It doesn't contain some kind of cooling device. The same vacuum that keeps hot things hot keeps cold things cold. Heat that might otherwise transfer to the cold contents of the thermos is prevented from reaching it because of the vacuum between the thermos walls. Today's thermoses are constructed much more sturdily than those in the past.