[Elamur Dictionary](https://md.dictionary.elamur.ai/free/en/) · [this page in HTML](https://dictionary.elamur.ai/free/en/english/semicircular/)

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# semicircular

adjective (semicircular)

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

## Everyday

Shaped like half a circle. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/semicircular/#m1)

### In the lessons

In maths it describes shapes and arcs; to find the area of a semicircular shape, find the area of the whole circle and halve it. In science, the «semicircular canals» in the inner ear help you balance. In everyday life it describes windows, tables or rows of chairs. Phrases: «semicircular shape», «semicircular canals», «semicircular arch».

### Examples

- We sat in a semicircular row around the teacher. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/semicircular/#x1)
- The church has a semicircular window over the door. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/semicircular/#x2)
- Find the area of the semicircular garden. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/semicircular/#x3)
- The semicircular canals in your ear help you keep your balance. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/semicircular/#x4)
- Romans built semicircular arches. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/semicircular/#x5)
- The rainbow made a semicircular shape across the sky. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/S/semicircular/#x6)

### Note

«Semi-» means half. Maths: area of a semicircle = half of π × radius × radius; the perimeter of a semicircle is half the circumference plus the diameter (the straight edge) — a common trap is forgetting the diameter.

## On Mova

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