thermos

Meanings

1. 1
   noun

   a vacuum-insulated flask or container designed to keep its contents hot or cold

   She poured hot coffee from the thermos at the mountain shelter.

Appears in

Simplified etymology

Thermos, used in the name Thermos flask from the early 20th century, derives from Greek thermos, “hot.” The Greek word shares an ancient root with English warm.

From Thermos, a trademark registered in the early twentieth century and later widely used as a common noun for a vacuum flask. The brand name was formed from Ancient Greek thermos ("hot, warm"), related to therme ("heat").

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External links

• Google Images
• Cambridge Dictionary
• Wiktionary