Often found in architectural contexts describing structures.

Architecture Usage

Can describe objects that are not complete circles but parts of them.

Descriptive Shape

Creates a clear picture of the object’s shape in the reader's mind.

Visual Description

Refers to specific parts within the human ear.

Biological Reference

Here, 'semicircular' doesn't describe the shape of the ear but a part of it.

Not About Shapes

Important in discussions about balance and spatial orientation.

Inner Ear Anatomy

 Wait, your ear? Your ear has another important function besides hearing. In its innermost part lies a group of structures known as the vestibular system, which gives us our sense of balance and movement. Inside there are three semicircular tubules that can sense rotation, one for each dimension of space.

The mystery of motion...

 most important is the arch the arch is an almost perfect design for bearing heavy loads and that design is so simple a series of wedge-shaped blocks is assembled together in a semicircular

Semicircular