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.
A thermos bottle prevents heat transfer to the outside by using a vacuum between the walls of the bottle.  The innerwall is usually made of glass while the outside wall is mâ¦ade of a plastic.  Metal walls also exist.   A vacuum doesnt conduct, since you need a substance to conduct heat.