thermos
UK/'θә:mәs/US
C2
Definitions
n.
An insulated flask that keeps drinks hot or cold (originally a trademark)
保温瓶，热水瓶（原为商标名）
Root Breakdown
Root-derived=thermos
Straight from Greek thermos (hot). It was a brand name for a vacuum flask, then became the everyday word. The name says "hot," but a thermos really preserves any temperature — it keeps cold drinks cold just as well.
Root therm still carries 3 more wordsCommon Collocations
- 1.a thermos of coffee一保温瓶咖啡
- 2.fill a thermos灌满保温瓶
- 3.thermos flask保温瓶
Example Sentences
- 1.
He filled a thermos with hot coffee before the long drive.
- 2.
Keep the soup in a thermos and it will still be warm at lunch.
- 3.
A good thermos keeps ice water cold all day.