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# cumulus

«cumulus» in Mova's school dictionary: **a type of white, puffy cloud with a flat bottom and a…** — its meaning for a pupil, its sense in the lessons and examples, with 1 sentence of Mova's corpora that use it.

### part of speech

noun (cumulus, uncountable; cumulus clouds; plural cumuli, rare)

### meaning for a pupil

1) Cumulus is a type of white, puffy cloud with a flat bottom and a rounded top, like cotton wool. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/cumulus/#m1)

2) Cumulus clouds usually mean fine weather, but very tall ones can grow into storm clouds (cumulonimbus). [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/cumulus/#m2)

### sense in the lessons

In science and geography lessons on weather, cumulus clouds form when warm air rises; they are the clouds children draw. The name comes from Latin "heap". Compare with stratus (flat layers) and cirrus (high, wispy). Phrases: cumulus clouds, fair-weather cumulus, cumulonimbus.

### examples

- Fluffy cumulus clouds floated across the blue sky. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/cumulus/#x1)
- Cumulus clouds look like cotton wool. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/cumulus/#x2)
- A cumulus cloud has a flat bottom and a puffy top. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/cumulus/#x3)
- Big cumulonimbus clouds can bring thunderstorms. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/cumulus/#x4)
- We drew cumulus, stratus and cirrus clouds in science. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/cumulus/#x5)
- The cumulus clouds meant it would stay sunny. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/cumulus/#x6)

### note

Pronounced "KYOO-myoo-lus". Usually uncountable or "cumulus clouds". Related word: cumulative (adding up step by step), from the same Latin root meaning heap.

### In the corpora

- [Cumulus clouds are white and puffy and usually mean fair weather.](https://md.mova.elamur.ai/free/en/corpora/school/world/67-clouds-rain-snow-hail/10/)

### Trees and pragmatics

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