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# roundness

noun (roundness — uncountable)

«roundness» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. The quality of being round or curved like a circle or ball. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/roundness/#m1)
2. A full, smooth quality, for example of a sound or a taste. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/roundness/#m2)

### In the lessons

In maths, roundness is about circles, spheres and curves; a circle is perfectly round. In science and geography, the roundness of the Earth (it is close to a sphere) explains why ships seem to disappear over the horizon. In art, roundness makes a drawing look solid. Phrases: the roundness of the Earth, the roundness of her face.

### Examples

- The roundness of the ball helps it roll. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/roundness/#x1)
- The Earth's roundness was known to the ancient Greeks. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/roundness/#x2)
- Pebbles get their roundness from being rolled by water. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/roundness/#x3)
- The artist shaded the apple to show its roundness. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/roundness/#x4)
- The roundness of the cello's sound was lovely. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/roundness/#x5)
- We measured the roundness of each orange. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/roundness/#x6)
- Even the moon is not always perfect in shape, but loses its roundness with time, and flowers bloom and then fade. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/roundness/#x7)

### Note

Uncountable. From "round" + -ness. The Earth is not perfectly round — it bulges a little at the equator. Myth: people in the Middle Ages did not all think the Earth was flat; educated people knew it was round.

## On Mova

- [Trees and pragmatics of «roundness» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/roundness/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«roundness» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/roundness.html) on Mova free.