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# flask

«flask» in Mova's school dictionary: **a container that keeps drinks hot or cold, also called a…** — its meaning for a pupil, its sense in the lessons and examples, with 2 sentences of Mova's corpora that use it.

### part of speech

noun (a flask, flasks)

### meaning for a pupil

1) A flask is a container that keeps drinks hot or cold, also called a vacuum flask or Thermos. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/F/flask/#m1)

2) In science, a flask is a glass container with a narrow neck, used in experiments. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/F/flask/#m2)

3) A flask can also be a small flat bottle for carrying a drink in a pocket. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/F/flask/#m3)

### sense in the lessons

In everyday life families take a flask of tea or soup on a picnic or walk; in science labs, conical flasks hold liquids for experiments. In science lessons pupils learn how a vacuum flask stops heat moving in or out. Phrases: «a flask of tea», «a conical flask», «a vacuum flask».

### examples

- Grandpa poured hot tea from his flask. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/F/flask/#x1)
- Take a flask of soup on the cold walk. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/F/flask/#x2)
- The scientist swirled the liquid in the flask. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/F/flask/#x3)
- A vacuum flask keeps drinks hot for hours. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/F/flask/#x4)
- The flask also keeps cold drinks cold. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/F/flask/#x5)
- Use a conical flask for this experiment. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/F/flask/#x6)
- My water flask fits in my school bag. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/F/flask/#x7)
- He was about to take a drink from a flask. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/F/flask/#x8)

### note

Countable. A vacuum flask works because there is almost no air between its two walls, so heat cannot move through easily. Safety: glass flasks break; handle them with care and wear goggles in experiments.

### In the corpora

- [The next week they're on the bench outside the shop, sharing a flask of tea.](https://md.mova.elamur.ai/free/en/corpora/school/everyday/483-neighbours-who-dont-speak-and-the-friendly-shopkeeper/5/)
- [I don't even like it without him," and cried into his flask of tea.](https://md.mova.elamur.ai/free/en/corpora/school/reflection/3-living-with-loss-keeping-memories-and-loss-that-isn-t-death/2/)

### Trees and pragmatics

[Every meaning and example of «flask» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/F/flask/), each sentence with its dependency tree and frames.