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in the PONS Dictionary

vacuum flask N Brit

in the PONS Dictionary
in the PONS Dictionary

flask [flɑːsk, Am flæsk] N

flask CHEM

I. vacuum [ˈvækjʊəm, Am -juːm] N

1. vacuum a. fig (space):

2. vacuum (hoover):

II. vacuum [ˈvækjʊəm, Am -juːm] VB trans

vacuum carpet, room:

Present
Ivacuum
youvacuum
he/she/itvacuums
wevacuum
youvacuum
theyvacuum
Past
Ivacuumed
youvacuumed
he/she/itvacuumed
wevacuumed
youvacuumed
theyvacuumed
Present Perfect
Ihavevacuumed
youhavevacuumed
he/she/ithasvacuumed
wehavevacuumed
youhavevacuumed
theyhavevacuumed
Past Perfect
Ihadvacuumed
youhadvacuumed
he/she/ithadvacuumed
wehadvacuumed
youhadvacuumed
theyhadvacuumed

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Monolingual examples (not verified by PONS Editors)

In the winter she packs soup, chili or other dinner leftovers in a stainless-steel vacuum flask to keep food hot.
www.timescolonist.com
It is then sealed inside the vacuum flask for several hours.
en.wikipedia.org
A typical domestic vacuum flask will keep liquid cool for about 24 hours and warm for up to 8.
en.wikipedia.org
The vacuum flask was so efficient at keeping heat out that it was found possible to preserve the liquids for comparatively long periods, making examination of their optical properties possible.
en.wikipedia.org
When appropriately insulated from ambient heat, liquid nitrogen can be stored and transported, for example in vacuum flasks.
en.wikipedia.org